Universe

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Physical Realm
Universe Astronomical Instrument
Galaxy Milky Way, Andromeda
Planetary System Star, Brown Dwarf, Planet, Moon

Solar System Sun
Terrestrial Planet Mercury, Venus, Earth (Moon), Mars
Asteroid Belt Ceres, Vesta
Jovian Planet Jupiter, Saturn, Uranus, Neptune
Trans-Neptunian Object
Kuiper Belt Pluto, Haumea, Makemake
Scattered Disc Eris, Sedna, Planet X
Oort Cloud Etc. Scholz’s Star
Small Body Comet, Centaur, Asteroid

Posts

  • Halloween@NASA (10/31/2019) - The folks at NASA love Halloween, and they do something to celebrate every year. For example, the engineers at NASA Jet Propulsion Lab have been holding a pumpkin carving contest for almost a decade, and stories about their ingenuity invariably make it into the news. Here’s a video from Wired about their 2016 competition. Here’s … Continue reading Halloween@NASA
  • Milky Way Lost & Found (8/15/2018) - Have you seen the Milky Way? You may think that you have, but are you sure? Unless you live in an extremely remote area, or you’ve visited one, then you probably haven’t seen our own galaxy, the Milky Way, very well, or at all. Worse yet, you may not even realize that it’s missing. The … Continue reading Milky Way Lost & Found

Resources

These are organized by a classification scheme developed exclusively for Cosma. More…

General

Dictionary

universe : a distinct field or province of thought or reality that forms a closed system or self-inclusive and independent organization — Webster

OneLook, Free Dictionary, Wiktionary, Urban Dictionary

space : a boundless three-dimensional extent in which objects and events occur and have relative position and direction — Webster

OneLook, Free Dictionary, Wiktionary, Urban Dictionary

Thesaurus

Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords

Encyclopedia

Universe The Universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. While the spatial size of the entire Universe is still unknown, it is possible to measure the observable universe. — Wikipedia

Encyclopædia Britannica

Space is the boundless three-dimensional extent in which objects and events have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime. The concept of space is considered to be of fundamental importance to an understanding of the physical universe. However, disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework. — Wikipedia

Encyclopædia Britannica

Cosmos: SAO Encyclopedia of Astronomy (Swinburne Centre for Astrophysics and Supercomputing)
Encyclopedia of Astronomy and Astrophysics
Astronomy (Eric Weisstein’s World of Astronomy, Wolfram Research)
Astrophysics (Eric Weisstein’s World of Physics, Wolfram Research)

Introduction

Portal

Astronomy Guide (Library of Congress)
Astronomy Selected Internet Resources (Library of Congress)
Astronomy and Astrophysics Science Tracer Bullet (Library of Congress)
Archaeoastronomy Science Tracer Bullet (Library of Congress)
Astronomy Subject Primer (National Network of Libraries of Medicine)
Astrophysics, Astronomy, Astrochemistry, Astrobiology & Cosmology Center (Martindale’s Reference Desk)
Space Portal (Wikipedia)
Astronomy Portal (Wikipedia)

Search

Space & Astronomy (Wolfram Alpha)
Astronomy (Wolfram Alpha)
Astrophysics (Wolfram Alpha)

Science

Astronomy is a natural science that studies celestial objects and phenomena. It applies mathematics, physics, and chemistry, in an effort to explain the origin of those objects and phenomena and their evolution. Objects of interest include planets, moons, stars, galaxies, and comets; the phenomena include supernova explosions, gamma ray bursts, and cosmic microwave background radiation. More generally, all phenomena that originate outside Earth’s atmosphere are within the purview of astronomy.

Astronomy is one of the oldest of the natural sciences. The early civilizations in recorded history, such as the Babylonians, Greeks, Indians, Egyptians, Nubians, Iranians, Chinese, Maya, and many ancient indigenous peoples of the Americas performed methodical observations of the night sky. Historically, astronomy has included disciplines as diverse as astrometry, celestial navigation, observational astronomy, and the making of calendars, but professional astronomy is now often considered to be synonymous with astrophysics. — Wikipedia

Encyclopædia Britannica

Astrophysics is the branch of astronomy that employs the principles of physics and chemistry to ascertain the nature of the astronomical objects, rather than their positions or motions in space. Among the objects studied are the Sun, other stars, galaxies, extrasolar planets, the interstellar medium and the cosmic microwave background. Their emissions are examined across all parts of the electromagnetic spectrum, and the properties examined include luminosity, density, temperature, and chemical composition. Because astrophysics is a very broad subject, astrophysicists typically apply many disciplines of physics, including mechanics, electromagnetism, statistical mechanics, thermodynamics, quantum mechanics, relativity, nuclear and particle physics, and atomic and molecular physics. — Wikipedia

Britannica

Outline

Outline of Space sciences (Wikipedia)

Preservation

History

History of Astronomy (Ask an Astronomer, Cornell University)

Quotation

Quotations Page Bartlett’s

Museum

Smithsonian National Air and Space Museum
Smithsonian National Air and Space Museum (YouTube Channel)

Library

WorldCat, Library of Congress, UPenn Online Books, Open Library

Participation

Education

SciShow Astronomy, Astrophysics and Space (YouTube Channel)
SciShow Space (YouTube Channel)

Teaching Astronomy Internet Resources (Library of Congress)
Educator Resources (Smithsonian Air & Space Museum)
AstroEdu (International Astronomical Union)

Universe (Space Place, NASA)
What’s in Space (Space Place, NASA)
The Universe (Cosmos4Kids)

Course

Crash Course Astronomy (YouTube)

Earth, Atmospheric, and Planetary Sciences (MIT Open Courseware)
Physics and Astronomy (Coursera)
OER Commons: Open Educational Resources

Community

Occupation

Careers in Astronomy (Ask an Astronomer, Cornell University)
The Universe (Ask an Astronomer, Cornell University)

Organization

International Astronomical Union (IAU)
American Astronomical Society (AAS)

Blog

The Science Geek : Astronomy, space and space travel for the non scientist
Astronomy Café

News

Space & Planetary Science EurekaAlert (American Association for the Advancement of Science)
Sky & Telescope Astronomy News
Space.com
Phys.org
ScienceDaily
Scientific American
Smithsonian Magazine

Government

National Aeronautics and Space Administration (NASA)
NASA Goddard Space Flight Center
NASA Jet Propulsion Laboratory (California Institute of Technology)
International Space Agencies (NASA)

Document

USA.gov

Expression

What Space Smells Like (Megan Garber, The Atlantic)

Fun

Humor

How To Go To Space (with XKCD!)

Arts

Astronomy in the Arts (Ask an Astronomer, Cornell University)

Poem

OEDILF: The Omnificent English Dictionary In Limerick Form

Music

Song Lyrics

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Cosma Posts

  • Dark, Deep & Spooky… (8/8/2017) - Today’s physics is “probably” not the kind of thing that you, or at least your parents and grandparents, learned about in school (unless you happen to be a Physicist). Even the most casual science buff knows that today it’s all about exotic stuff like dark matter (NASA), ghost particles (FermiLab) and “spooky action at a … Continue reading Dark, Deep & Spooky…
  • Enterprise (1/22/2017) - Star Trek fans, take notice. Here’s a cool new 360° video that takes you where you’ve never gone before… or well, at least not outside of a 2D screen. It’s a grand up-close tour of the Enterprise, and it was posted by CBS to promote the series. Check it out! (This is a 360° YouTube … Continue reading Enterprise
  • ExoMars (10/19/2016) - Oct. 21 Update: Unfortunately, the ExoMars mission’s Schiaparelli lander did not make a successful landing due to technical difficulties, and the crash site has been found. Happily, the mother ship did successfully enter orbit. Why Schiaparelli Probe’s Mars ‘Crash Land’ Is No Failure (Mason Peck, Newsweek) Mars Reconnaissance Orbiter views Schiaparelli landing site (ESA) Here’s … Continue reading ExoMars
  • Exoplanet Junket (6/2/2018) - I’m on a vacation of sorts, so it’s no surprise that stories about travel tend to catch my eye. However, it is surprising if the story happens to be about something that NASA’s done. This week NASA released a new project that they’ve dubbed the Exoplanet Travel Bureau. The core of the project consists of … Continue reading Exoplanet Junket
  • Get Lost in Space! (9/14/2018) - Way back in August, in anticipation of the start of a new school year, I set out to update the pages on this site related to space. Those pages tend to be popular among the teachers and students who use Cosma, and I happen to enjoy updating them, too. It sounded like a short, fun … Continue reading Get Lost in Space!
  • Great Views of Earth (4/22/2018) - April 22nd is Earth Day! In honor of that, here are some great ways to see the honoree. First, you can get a nice view from this neat 360° Video from Seeker. It essentially shows you what it would feel like if you could just fly straight up and see the Earth from space. National … Continue reading Great Views of Earth
  • Halloween@NASA (10/31/2019) - The folks at NASA love Halloween, and they do something to celebrate every year. For example, the engineers at NASA Jet Propulsion Lab have been holding a pumpkin carving contest for almost a decade, and stories about their ingenuity invariably make it into the news. Here’s a video from Wired about their 2016 competition. Here’s … Continue reading Halloween@NASA
  • Lunar Landings (7/19/2019) - Saturday, July 20th is the 50th anniversary of the Apollo 11 Moon Landing, and there’s a massive media blitz surrounding the occasion. Pretty much every major news outlet is covering it in some way, and it’s no surprise that NASA is leading the publicity frenzy. On Friday at 1 p.m. (EDT) NASA is broadcasting 50 … Continue reading Lunar Landings
  • Mars 3D (11/16/2016) - Mars is getting even more attention than usual this week, and that is “mostly” because National Geographic began airing their special six part Mars series on Monday nights (9/8c). Here’s a trailer and links about it… Virtual Trip to Mars Offers Ultimate Preview to Crewed Mission (Nadia Drake, National Geographic) Inside Nat Geo’s Incredible Documentary … Continue reading Mars 3D
  • Mars is hard! (11/25/2018) - Update 8:30 PM November 26, 2018 (EST) Touchdown! Mars InSight lander reaches red planet (Alexandra Witze, Nature) NASA’s InSight Mission Triumphantly Touches Down on Mars (Ian O’Neill, Scientific American) InSight has landed with Updates (Emily Lakdawalla, Planetary Society) Landing Replay (SciNews) Original Post If you hear a phrase like “six and a half minutes of … Continue reading Mars is hard!
  • Milky Way Lost & Found (8/15/2018) - Have you seen the Milky Way? You may think that you have, but are you sure? Unless you live in an extremely remote area, or you’ve visited one, then you probably haven’t seen our own galaxy, the Milky Way, very well, or at all. Worse yet, you may not even realize that it’s missing. The … Continue reading Milky Way Lost & Found
  • Moon’scapes (2/28/2020) - There’s no denying that it’s been a rough week for many Earthlings. On the other hand, it’s been a great week for anyone who spends their time more preoccupied with the Moon than with more earthly concerns. That’s because there’s a treasure trove of news about our lunar realm. For example, NASA’s Goddard Media Studios … Continue reading Moon’scapes
  • Moon+H2O=Moonbase? (7/25/2017) - One of the big science stories in the news right now is that Earth’s Moon has more water than scientists expected. This Newsy video is just one of the hundreds of stories flooding news feeds. This round of stories has been inspired by this article in Nature Geoscience. Remote detection of widespread indigenous water in … Continue reading Moon+H2O=Moonbase?
  • Octopuses from Space! (5/20/2018) - Did you hear the one about the octopuses from space? It sounds like the title of a cheesy sci-fi movie, doesn’t it? But it isn’t, this time, or at least, yet. Instead, it’s actually an oddball theory that’s been put forth in a recently published “scientific” article that’s getting quite a lot of buzz in … Continue reading Octopuses from Space!
  • Perspectives on Earth (11/23/2017) - Last week NASA released this fascinating video entitled Our Living Planet based upon 20 years of data from satellites that observe all plant life at the surface of the land and ocean. You can find out more about the video from this article. The Changing Colors of our Living Planet (NASA) Of course, releasing fantastic … Continue reading Perspectives on Earth
  • RIP Rossetta! (10/1/2016) - The “Little Mission that Could” has come to an end, but what a mission it was to watch! Rosetta Concludes Mission with a Crash (Megan Gannon, Scientific American) Rosetta Mission Ends With Spacecraft’s Dive Into Comet (Kenneth Chang, New York Times) It was such a joy to watch each historic milestone the mission passed over … Continue reading RIP Rossetta!
  • Space Rocks! (1/4/2019) - It was a fantastic holiday season for space fans! In fact, there was so much going on, it was almost impossible to keep up with it all. According to your news sources and interests, you have probably heard about at least some of the amazing things that happened, but chances are you haven’t heard about … Continue reading Space Rocks!
  • Strange Things (11/12/2016) - There’s been a ton of cool stuff going on in the 3D/360°/AR/VR hardware and software universe lately, and there’s about to be even more (more on that soon). On the other hand, the 3D/360°/AR/VR content front has been “relatively” static (unless you love Halloween’esque horror, of course). When I went looking for something interesting to … Continue reading Strange Things
  • Super Bowl of Astronomy (1/15/2018) - The annual meeting of the American Astronomical Society, a.k.a. the “Super Bowl of Astronomy” was held in Washington DC last week. While it might not have as much cachet as the Consumer Electronics Show, great tidbits from the conference do slip into the mainstream media from time to time. For example, Phys.org did a nice … Continue reading Super Bowl of Astronomy
  • The waves won! (10/4/2017) - Gravitational waves that is! It has been announced that Rainer Weiss (MIT), Barry Barish (Caltech) and Kip Thorne (Caltech) have won the 2017 2017 Nobel Prize in Physics for their decisive contributions to the LIGO detector and the first observation of gravitational waves in 2015. Here’s a quick one minute video from Newsy and a … Continue reading The waves won!
  • Touch the Sun (12/6/2019) - Remember how Icarus wanted to touch the Sun, but met his demise instead? Well, scientists at NASA wanted to touch the Sun too, but unlike Icarus, they succeeded! Better yet, they are beginning to share what they learned by doing it! Before we get into all of that, let’s go back and start at the … Continue reading Touch the Sun
  • TRAPPIST-1 (2/23/2017) - You’ve probably heard that NASA has found a trove of “Earth-like” planets circling the TRAPPIST-1 system roughly 40 light years away, but just in case you haven’t, here’s a short 2 minute AP video about the discovery. Here’s another video from NASA/JPL with more explanation. Most entertainingly, here’s a 360° YouTube Video published by NASA/JPL … Continue reading TRAPPIST-1
  • Umbraphiles (8/20/2017) - umbraphile : One who loves eclipses, often travelling to see them. — Wiktionary Yes, this is that obligatory post about “The Solar Eclipse” (NASA, Wikipedia). Of course, there had to be one — eclipses really are just too cool to ignore. You’ve already been bombarded with explanations of the science and history of eclipses, but … Continue reading Umbraphiles
  • Visioning Spacesteads (8/8/2018) - Space, the final frontier… Humans have been imagining what it would be like to setup homesteads and live in space for about as long as they’ve been imagining how to get there, but the process didn’t really take off until after we actually got there. Back in the 1970’s NASA dedicated some resources to the … Continue reading Visioning Spacesteads

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EurekAlert! - Space and Planetary Science The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.

  • Radar satellites can better protect against...
    on April 23, 2021 at 4:00 am

    (Curtin University) New research led by Curtin University has revealed how radar satellites can improve the ability to detect, monitor, prepare for and withstand natural disasters in Australia including bushfires, floods and earthquakes.

  • Two UoC professors win the most prestigious...
    on April 23, 2021 at 4:00 am

    (University of Cologne) Cultural anthropologist Michael Bollig and physicist Stephan Schlemmer receive an ERC Advanced Grant for new research projects.

  • Hubble captures giant star on the edge of...
    on April 23, 2021 at 4:00 am

    (NASA/Goddard Space Flight Center) In celebration of the 31st anniversary of the launching of NASA's Hubble Space Telescope, astronomers aimed the renowned observatory at a brilliant "celebrity star," one of the brightest stars seen in our galaxy, surrounded by a glowing halo of gas and dust.

  • Hubble celebrates 31st birthday with giant star...
    on April 23, 2021 at 4:00 am

    (ESA/Hubble Information Centre) In celebration of the 31st anniversary of the launching of the NASA/ESA Hubble Space Telescope, astronomers aimed the celebrated observatory at one of the brightest stars seen in our galaxy to capture its beauty.

  • Danish participation in over a third of the new...
    on April 23, 2021 at 4:00 am

    (University of Copenhagen - Faculty of Science) When the James Webb Space Telescope, despite repeated delays, finally launches in October, and after some initial calibrations begins its first cycle of observations, these will include an impressive Danish participation. Cosmic Dawn Center - a collaboration between Technical University of Denmark and the Niels Bohr Institute, University of Copenhagen - will be at work from the very beginning. The primary focus will be on learning more about the […]


Astronomy & Observing News – Sky & Telescope The essential guide to astronomy

  • Is the “Unicorn” the Closest Black Hole?
    by Govert Schilling on April 23, 2021 at 5:48 pm

    Astronomers again think they have found the black hole nearest to us, just 1,500 light-years away, but the find still needs to be confirmed. The post Is the “Unicorn” the Closest Black Hole? appeared first on Sky & Telescope.

  • This Week's Sky at a Glance, April 23 – May 1
    by Alan MacRobert on April 23, 2021 at 8:41 am

    Day by day, Venus and Mercury creep up from the sunset horizon in bright twilight. High above as twilight fades away, trace out the Arch of Spring arching high over Mars. Meanwhile Arcturus dominates the east. The post This Week's Sky at a Glance, April 23 – May 1 appeared first on Sky & Telescope.

  • Redefining a Heavy Collision
    by AAS Nova on April 22, 2021 at 12:00 pm

    Could the biggest — literally — gravitational-wave discovery yet be something other than what it initially seemed? The post Redefining a Heavy Collision appeared first on Sky & Telescope.

  • Hunting Barnard's Variable in the Globular...
    by Bob King on April 21, 2021 at 5:43 pm

    We beat a path through a forest of stars to find the first variable star ever discovered in a globular star cluster. The post Hunting Barnard's Variable in the Globular Cluster M3 appeared first on Sky & Telescope.

  • Ingenuity Mars Helicopter: First Flight on Mars
    by David Dickinson on April 20, 2021 at 12:52 am

    NASA’s Ingenuity Mars Helicopter has made its brief hop into the history books of interplanetary aviation. The post Ingenuity Mars Helicopter: First Flight on Mars appeared first on Sky & Telescope.


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Space News - Space, Astronomy, Space Exploration The latest science news on astronomy, astrobiology, and space exploration from Phys.org.

  • Seismicity on Mars full of surprises, in first...
    on April 23, 2021 at 5:04 pm

    The SEIS seismometer package from the Mars InSight lander has collected its first continuous Martian year of data, revealing some surprises among the more than 500 marsquakes detected so far.

  • Feeling confinement in the gut: Microbiome...
    on April 23, 2021 at 2:50 pm

    Crew members who took part in the Mars500 experiment showed significant changes in their gut microbiota from their 520 days in confinement, according to a new study by scientists at Université de Montreal and McGill University.

  • A superluminous supernova from a massive...
    on April 23, 2021 at 2:48 pm

    Stars greater than about eight solar-masses end their lives spectacularly as supernovae. These single-star supernovae are called core collapse supernovae because their dense cores, composed primarily of iron at this late stage of their lives, are no longer able to withstand the inward pressure of gravity and they collapse before exploding. Core collapse supernovae that display strong atomic hydrogen emission lines are thought to result from the explosions of red supergiant stars, massive stars […]

  • Hubble captures giant star on the edge of...
    on April 23, 2021 at 2:40 pm

    The expanding shell of gas and dust that surrounds the star is about five light-years wide, which equals the distance from here to the nearest star beyond the Sun, Proxima Centauri.

  • This supermoon has a twist – expect flooding,...
    on April 23, 2021 at 2:35 pm

    A "super full moon" is coming on April 27, 2021, and coastal cities like Miami know that means one thing: a heightened risk of tidal flooding.


Astronomy News -- ScienceDaily Astronomy news. New! Earth-like extrasolar planet found; double helix nebula; supermassive black holes, astronomy articles, astronomy pictures. Updated daily.

  • Mars has right ingredients for present-day...
    on April 22, 2021 at 7:04 pm

    New research suggests that rocks in the Martian crust could produce the same kind of chemical energy that supports microbial life deep beneath Earth's surface.

  • The science of spin: Asteroseismologists confirm...
    on April 22, 2021 at 4:36 pm

    Stars spin faster than expected as they age according to a new study which uses asteroseismology to shed new light on this emerging theory.

  • Using exoplanets as dark matter detectors
    on April 22, 2021 at 4:36 pm

    In the continuing search for dark matter in our universe, scientists believe they have found a unique and powerful detector: exoplanets. Astrophysicists suggest dark matter could be detected by measuring the effect it has on the temperature of exoplanets, which are planets outside our solar system.

  • ALMA discovers rotating infant galaxy with help...
    on April 22, 2021 at 1:38 pm

    Using ALMA, astronomers found a rotating baby galaxy 1/100th the size of the Milky Way at a time when the Universe was only seven percent of its present age. Thanks to assistance by the gravitational lens effect, the team was able to explore for the first time the nature of small and dark 'normal galaxies' in the early Universe, which greatly advances our understanding of the initial phase of galaxy evolution.

  • Astronomers release new all-sky map of Milky...
    on April 22, 2021 at 2:22 am

    The highlight of the new chart is a wake of stars, stirred up by a small galaxy set to collide with the Milky Way. The map could also offer a new test of dark matter theories.