Earth got pretty beat up in its first 500 million years. Scientists recreated thousands of asteroid strikes over 4 billion years ago. Those asteroids shaped the planet’s crust, and may have contributed to the rise of life on Earth. Continue reading
An asteroid the size of three football fields is expected to zip by Earth at a close, but safe distance on Monday.
Traveling at 27,000 mph, the celestial object 2000 EM26 will be approximately 2 million miles from the Earth’s surface at its closest approach, Space.com reports. The asteroid is also nearly 885 feet in diameter. Continue reading
New research reveals that space fragments are hitting our planet 10 times more often than previously thought. Will we suffer the same fate as the dinosaurs? NewsHour science correspondent Miles O’Brien explains to Judy Woodruff that scientists have the technology to avoid meteors en route to Earth, but they need warning first. Continue reading
The U.S. has explored space with telescopes, robotic rovers and its shuttle. Now facing budget cuts and reduced resources, NASA has had to reassess its ambitions while heeding the call for new discovery. Judy Woodruff talks to Joel Achenbach of the Washington Post about a new program that aims to capture a small asteroid. Continue reading
Paul Davies of Independent Television News reports that 10-ton meteor that fell over Russia with atomic bomb power. The meteor caused a fireball, blowing out windows and injuring 1,000 people. Continue reading
On the same day as a meteor hit Russia, an asteroid careened towards Earth. Jeffrey Brown talks to astrophysicist Neil deGrasse Tyson about this cosmic coincidence, how the meteor and asteroid came so close to Earth, what risks it poses and why this is a ‘wake-up call.’ Continue reading
On December 12, Dawn maneuvered into its closest orbit yet around giant asteroid Vesta. The spacecraft is now circling Vesta at an altitude of about 130 miles. Since NASA’s spacecraft dawn snapped into orbit around the object, it has been snapping pictures of the asteroid’s rugged surface and beaming them back to Earth. Continue reading