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Posts
- 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!
- Asteroids Galore! (6/27/2018) - Head’s up! You’re going to hear a lot about asteroids over the next week or so. The good news is that none of it is related to any specific asteroid hitting us. This media blitz is due to a trifecta of asteroid related events this week. One big reason you’ll hear so much about asteroids … Continue reading Asteroids Galore!
- 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!
- Asteroids Everywhere (6/30/2017) - Friday, June 30 is Asteroid Day, so you are going to be hearing a LOT about Asteroids over the next day or so (see Asteroid Day.org, NASA, YouTube and Wikipedia). The reason Asteroid Day falls on this date is because it’s the anniversary of the 1908 “Tunguska event” when scientists believe a 50 meter wide … Continue reading Asteroids Everywhere
Resources
These are organized by a classification scheme developed exclusively for Cosma. More…
General
Portal
Solar System Exploration: Asteroids (NASA)
Asteroid Things (Wikipedia)
Dictionary
asteroid : any of the small rocky celestial bodies found especially between the orbits of Mars and Jupiter — Webster
OneLook, Free Dictionary, Wiktionary, Urban Dictionary
Encyclopedia
Asteroids are a class of Small Solar System Bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones. These terms have historically been applied to any astronomical object orbiting the Sun that did not show the disk of a planet and was not observed to have the characteristics of an active comet, but as small objects in the outer Solar System were discovered, their volatile-based surfaces were found to more closely resemble comets, and so were often distinguished from traditional asteroids. Thus the term asteroid has come increasingly to refer specifically to the small rocky–icy and metallic bodies of the inner Solar System out to the orbit of Jupiter. They are grouped with the outer bodies—centaurs, Neptune trojans, and trans-Neptunian objects—as minor planets, which is the term preferred in astronomical circles.
There are millions of asteroids, many thought to be the often shattered remnants of planetesimals, bodies within the young Sun’s solar nebula that never grew large enough to become planets. A large majority of known asteroids orbit in the asteroid belt between the orbits of Mars and Jupiter or co-orbital with Jupiter (the Jupiter Trojans). However, other orbital families exist with significant populations, including the near-Earth asteroids. Individual asteroids are classified by their characteristic spectra, with the majority falling into three main groups: C-type, S-type, and M-type. These were named after and are generally identified with carbon-rich, stony, and metallic compositions, respectively. — Wikipedia
Asteroids (Eric Weisstein’s World of Astronomy, Wolfram Research)
Encyclopædia Britannica
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Science
Planetary Defense Office (NASA)
NASA Office to Coordinate Asteroid Detection, Hazard Mitigation (NASA)
Planetary Defense Coordination Office, Press Release (PDCO, NASA)
Twenty Years of Tracking Near-Earth Objects (NASA/JPL)
Near-Earth Objects Internet Resources (Library of Congress)
Near-Earth Objects (Minor Planet Center, International Astronomical Union)
Near Earth Asteroids (Minor Planet Center, International Astronomical Union)
Potentially Hazardous Asteroids (Minor Planet Center, International Astronomical Union)
1+ KM Near-Earth Objects (Minor Planet Center, International Astronomical Union)
OSIRIS-REx Mission (NASA)
OSIRIS Rex (Wikipedia)
101955 Bennu (NASA)
101955 Bennu (Wikipedia)
Preservation
History
The Discovery of Asteroids (ESA)
Library
WorldCat, Library of Congress, UPenn Online Books, Open Library
Participation
Education
What is an Asteroid? (Space Place, NASA)
More to Explore: Asteroids, Comets and Meteorites (NASA)
Comets, Meteors & Asteroids (Ask an Astronomer, Cornell University)
Asteroids (Cosmos4Kids)
Course
Crash Course Astronomy (YouTube)
OER Commons: Open Educational Resources
Community
Organization
International Astronomical Union (IAU)
News
Science Daily, Phys.org, NPR Archives
Book
Government
Document
Expression
Fun
The Great Asteroid of 1998 (FailBook)
Poem
OEDILF: The Omnificent English Dictionary In Limerick Form
More…
Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
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Odd bodies, rapid spins keep cosmic rings close
on November 19, 2018 at 5:27 pm
Forget those shepherding moons. Gravity and the odd shapes of asteroid Chariklo and dwarf planet Haumea—small objects deep in our solar system—can be credited for forming and maintaining their own rings, according new research in Nature Astronomy. […]
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Lunar Outpost shows off new moon rover
on November 19, 2018 at 2:29 pm
Space technology company Lunar Outpost has unveiled their new Lunar Prospector rover that will explore the surface of the moon to search for and map resources. The Lunar Prospector is designed to drill for and analyze sub-surface samples. The first of the smallish robots was recently demonstrated on simulated Lunar regolith at the Colorado School of Mines. […]
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Tiny teeth tell the story of two fish species'...
on November 19, 2018 at 1:43 pm
Elizabeth Sibert is rewriting the story of how the asteroid impact that killed off the dinosaurs affected fish, and she's doing it one tooth at a time. […]
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Overflowing crater lakes carved canyons across...
on November 16, 2018 at 7:00 pm
Today, most of the water on Mars is locked away in frozen ice caps. But billions of years ago it flowed freely across the surface, forming rushing rivers that emptied into craters, forming lakes and seas. New research led by The University of Texas at Austin has found evidence that sometimes the lakes would take on so much water that they overflowed and burst from the sides of their basins, creating catastrophic floods that carved canyons very rapidly, perhaps in a matter of weeks. […]
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NASA Learns More About Interstellar Visitor...
on November 14, 2018 at 9:17 pm
In November 2017, scientists pointed NASA's Spitzer Space Telescope toward the object known as 'Oumuamua—the first known interstellar object to visit our solar system. The infrared Spitzer was one of many telescopes pointed at 'Oumuamua in the weeks after its discovery that October. […]
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Huge crater discovered in Greenland from impact...
on November 14, 2018 at 7:00 pm
A survey of ice in Greenland has uncovered evidence suggesting a kilometer-wide iron asteroid slammed into that island, perhaps as recently as 12,000 years ago during the end of the Pleistocene. The resulting 19-mile-wide impact crater has remained hidden under a half-mile-thick ice sheet until now. It recently was exposed by an ultra-wideband chirp radar system developed at the Center for the Remote Sensing of Ice Sheets (CReSIS) headquartered at the University of Kansas. […]
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Catching asteroid 3 Juno at its best
on November 14, 2018 at 2:37 pm
Not all oppositions are created equal. This week's sky target offers a good case in point, as asteroid 3 Juno reaches its most favorable viewing position for the decade. […]
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Rare fossil bird deepens mystery of avian...
on November 13, 2018 at 12:26 pm
During the late Cretaceous period, more than 65 million years ago, birds belonging to hundreds of different species flitted around the dinosaurs and through the forests as abundantly as they flit about our woods and fields today. […]
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Aboard the first spacecraft to the trojan...
on November 12, 2018 at 1:52 pm
Ralph, one of NASA's most well-traveled space explorers, has voyaged far and accomplished much: on the New Horizons mission, Ralph obtained stunning flyby images of Jupiter and its moons; this was followed by a visit to Pluto where Ralph took the first high-definition pictures of the iconic minor planet. And, in 2021, Ralph journeys with the Lucy mission to Jupiter's Trojan asteroids. […]
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HD video from the moon in near real time
on November 12, 2018 at 1:47 pm
A new optical modem, capable of sending high-definition quality video significantly faster than standard radio frequency systems, is being developed for NASA's Orion spacecraft. The hardware, offered by LGS Innovations, is expected to deliver near real time footage from the moon and other space destinations. […]