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Solar System Sun
Terrestrial Planet Mercury, Venus, Earth (Moon), Mars
Asteroid Belt Ceres, Vesta
Jovian Planet Jupiter, Saturn, Uranus, Neptune
Kuiper Belt Pluto, Haumea, Makemake
Scattered Disc Eris, Sedna, Planet X
Oort Cloud Etc. Scholz’s Star
Small Body Comet, Centaur, Asteroid
- 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!
- 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
These are organized by a classification scheme developed exclusively for Cosma. More…
asteroid : any of the small rocky celestial bodies found especially between the orbits of Mars and Jupiter — Webster
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
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)
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.
- Huge Puerto Rico radio telescope to close in blow...on November 19, 2020 at 5:47 pm
The National Science Foundation announced Thursday that it will close the huge telescope at the renowned Arecibo Observatory in Puerto Rico in a blow to scientists worldwide who depend on it to search for planets, asteroids and extraterrestrial life.
- We created diamonds in minutes without heat by...on November 19, 2020 at 5:40 pm
In nature, diamonds form deep in the Earth over billions of years. This process requires environments with exceptionally high pressure and temperatures exceeding 1,000℃.
- A record close shave: Asteroid 2020 VT4 just...on November 18, 2020 at 4:00 pm
Wow. A low-flying space rock set a record last Friday (appropriately, the 13th), when 2020 VT4 passed just under 400 kilometers (250 miles) over the Southern Pacific.
- How chemical clues from prehistoric microbes...on November 18, 2020 at 3:50 pm
Chemical clues left behind by humble microbes have rewritten the timeline of one of the biggest mass extinction events in Earth's history.
- New analysis refutes claim that dinosaurs were in...on November 18, 2020 at 12:00 am
A new study from researchers at the University of Bath and Natural History Museum looking at the diversity of dinosaurs shows that they were not in decline at the time of their extinction by an asteroid hit 66 million years ago.
- Wilkes-Barre campus observatory used to report...on November 17, 2020 at 2:16 pm
Penn State Wilkes-Barre's observatory recently observed an stellar event and shared data with NASA for use on a future mission to an unexplored region of the solar system.
- Ancient zircon minerals from Mars reveal the...on November 17, 2020 at 12:18 pm
Analysis of an ancient meteorite from Mars suggests that the mineral zircon may be abundant on the surface of the red planet.
- Cable failures endanger renowned Puerto Rico...on November 15, 2020 at 6:08 pm
The giant, aging cables that support one of the world's largest single-dish radio telescopes are slowly unraveling in this U.S. territory, pushing an observatory renowned for its key role in astronomical discoveries to the brink of collapse.
- Potential plumes on Europa could come from water...on November 13, 2020 at 10:59 pm
Plumes of water vapor that may be venting into space from Jupiter's moon Europa could come from within the icy crust itself, according to new research. A model outlines a process for brine, or salt-enriched water, moving around within the moon's shell and eventually forming pockets of water—even more concentrated with salt—that could erupt.
- Apophis asteroid might be more likely to strike...on November 13, 2020 at 3:10 pm
David Tholen, an astronomer at the University of Hawaii, recently reported on the status of asteroid Apophis during a virtual meeting of the American Astronomical Society's Division for Planetary Sciences. During his presentation, he outlined research he and his team conducted regarding the path of the asteroid and the likelihood that it will strike Earth.