Asteroids
Near Earth Asteroid 2007 TU24 Will Make a Close Approach on January 29, 2008
An asteroid between 150-160 meters in diameter will pass within 540,000 kilometers (334,000 miles) of Earth on January 29 at…
When Do Asteroids Turn Dangerous?
One of the most spectacular sights in the night sky is a fireball; a rock from space impacts the atmosphere…
Asteroid 2007 WD5 Won’t Hit Mars
Sorry to disappoint those of you hoping for some Martian fireworks the end of this month. NASA's Near Earth Object…
1-in-75 Chance Of Tunguska-Size Impact On Mars
A 164-foot (50 meter) wide asteroid will be crossing the orbit of Mars at the end of January 2008. Currently,…
Bigger Risks from Smaller Asteroids?
When astronomers first made the connection between asteroid impacts and extinction events on Earth, it was kind of frightening. There…
Oops, That Isn’t an Asteroid, it’s Rosetta
Remember when I mentioned that ESA's Rosetta was inbound to make a flyby of the Earth on November 13th? Well,…
Tunguska Meteoroid’s Cousins Found?
It's a cosmic whodunit: a meteorite exploded in the air near a remote part of Russia called Tunguska in 1908,…
Undergrad Team Discovers 1,300 Asteroids
A team of undergrad astronomers at the University of Washington figured out how to turn an annoyance into a major…
Dawn is Gone
The big day arrived, and nothing could keep that spacecraft on the ground. At 7:34 am EDT NASA's Dawn spacecraft…
Tether to Keep Asteroid Explorers Grounded
Here on Earth, gravity keeps us firmly on solid ground. But when astronauts set foot on some of the more…