Meteorites
Did a House-Sized Meteorite Create This Mysterious Circle in Antarctica?
Endless blinding white ice as far as the eye can see. This is the common scene from the window of…
Defining Life I: What are Astrobiologists Looking For?
How can astrobiologists find extraterrestrial life? In everyday life, we usually don’t have any problem telling that a dog or…
Meteoric Evidence Suggests Mars May Have a Subsurface Reservoir
It is a scientific fact that water exists on Mars. Though most of it today consists of water ice in…
The Curious History of the Geminid Meteors
UPDATE: Tune in this Sunday as the good folks over at the Virtual Telescope Project feature a live webcast covering…
Earth May Have Lost Some Primoridial Atmosphere to Meteors
During the Hadean Eon, some 4.5 billion years ago, the world was a much different place than it is today.…
Observing Challenge: How to See Asteroid Hebe, Mother of Mucho Meteorites
In the reeds that line the banks of the celestial river Eridanus, you'll find Hebe on the prowl this month. Discovered in 1847…
Watch Asteroids Whiz by the Earth-Moon System This Week as First Steps Toward Asteroid Exploration Leave the Launch Pad
It’s a dangerous universe out there, for a budding young space-faring species. Killer comets, planet sterilizing gamma ray bursts, and…
The Origins of Life Could Indeed Be “Interstellar”
Some of science's most pressing questions involve the origins of life on Earth. How did the first lifeforms emerge from…
How Do Planets Form? Semarkona Meteorite Shows Some Clues
It may seem all but impossible to determine how the Solar System formed, given that it happened roughly 4.5 billion…
We are not Alone: Government Sensors Shed New Light on Asteroid Hazards
How hazardous are the thousands and millions of asteroids that surround the third rock from the Sun – Earth? Since…