At closest approach, the asteroid will pass only 7,500 miles (12,000 km) above Earth's surface.

An international collaboration reported first indications of the production of electron neutrinos from muon neutrinos, raising the prospect that it may be possible for future experiments to test for violation of the symmetry between matter and antimatter.

A preliminary orbit shows that the comet will come within about 30 million miles (50 million kilometers) of the Sun in early 2013.

Such superfluids are found in neutron stars, which rotate between one and 1,000 times a second.

Discovery reveals a different power source has begun to light the debris, and marks the transition from a supernova to a supernova remnant.

With virtually all systems shut down, the probe will now coast for 31 months until waking up in 2014 for arrival at its comet destination.

The CME should deliver a glancing blow to Earth's magnetic field during the late hours of June 8th or June 9th.

Study reveals an unexpected twist in the early lives of Jupiter and Saturn as well.

This event favors those in Africa, Asia, and Australia.

NGC 6791 is the first known star cluster juxtaposing the properties of open and globular clusters.

Based on Hubble observations, researchers concluded that M105, an elliptical galaxy with no previously known star formation, actually produces stars at an average rate of one sun every 10,000 years.

The shuttle’s new permanent home will be the California Science Center in Los Angeles.

This impressive spiral gives us a sense of how a distant observer might see our galactic home.