Neil deGrasse Tyson sings a Symphony of Science

There are few astronomical videos that bring a tear to my eye anymore, but this one did. Neil deGrasse Tyson, you are wonderful.

Lutetia: Rare survivor from birth of Earth

Asteroid Lutetia appears to have formed from the same material as Earth, Venus and Mercury, 4-and-a-half billion years ago.

Killer solar flares a physical impossibility in 2012

The sun is now rising to the peak of its 11-year cycle of activity. But it's not possible for killer solar flares to end humanity or destroy Earth.

Close-passing asteroid 2005 YU55: More images

Bookmark this page to see the latest images of asteroid 2005 YU55, which passed 200,000 miles (319,000 kilometers) from Earth on November 8, 2011.

Cosmic rock found in farmer’s field

The cosmic rock known as the Conception Junction meteorite was probably once part of the asteroid belt. It is a rare and very beautiful meteorite.

Pristine gas from the Big Bang detected

Astronomers use the light from a quasar to study pristine gas, as it existed in the early universe, just moments after the Big Bang.

Images of tiny galaxies bursting with starbirth

The Hubble Space Telescope has gathered 69 new images of tiny galaxies, young galaxies, brimming with star formation in the early universe.

Alien artifacts can’t be ruled out in solar system

Using mathematics, researchers conclude that we cannot rule out the possibility of alien artifacts in our solar system as they would likely remain unnoticed.

2005 YU55: See it when it passes Earth on November 8 and 9

When at its closest on November 8 and 9, asteroid 2005 YU55 will look like a steadily moving star. It'll cover a moon's width of sky in under 5 minutes.

2005 YU55 will sweep closely past the Earth

The large asteroid 2005 YU55 will fly within the moon's distance from Earth on November 8, 2011.