NASA

An asteroid nearly four Olympic swimming pools across will fly closer than the moon Tuesday, prompting officials to quell worries that the rogue rock will slam into the Earth.

Asteroid 2005 YU55 is scheduled to skirt Earth on Nov. 8, giving astronomers an unparalleled opportunity to make observations about the space rock. Over four hundred yards across, the asteroid is large enough to cause damage on a regional scale if it were to make contact. Luckily, it will just miss Earth, whizzing past at the decidedly cozy distance of 201,700 miles - closer than our own Moon.

Three NASA scientists have been given the go ahead to work on the science fiction invention. Tractor beams will we used to collect interstellar particles but is light years away from .

On Wednesday morning, an unmanned Russian freighter makes cargo deliveries aboard the International Space Station. Among other needed supplies for astronauts in orbit, the spacecraft also delivered the first iPads to ever fly in space.

An asteroid will come within 202,000 miles of earth on Nov. 8--closer than the moon.

A look at the NYCSci Tweetup monthly event and the people who attend it.

With U.S. government closing the chapter to space exploration, commercial space companies are trying to convince lawmakers to invest in their business ventures.

On Friday, NASA launched a new satellite that will improve our short-term weather forecasting accuracy, among other contributions.

Chicago-based Boeing Co. has reached an agreement to lease a mothballed space shuttle hanger at NASA's Kennedy Space Center in Central Florida.

China is the chief suspect in a in a string of hacking incidents of U.S. satellites that took place four or more times in 2007 and 2008.

NASA's newest Earth-observing satellite soared into space Friday aboard a Delta II rocket after liftoff at 5:48 a.m. EDT from Space Launch Complex 2 at Vandenberg Air Force Base in California

Pacman Nebula has grown some new fangs; just in time for Halloween. NASA recorded a photograph of the Pacman Nebula, a star-forming cloud, munching its way through the cosmos. NASA reported on Oct. 26 that, when viewed through infrared light by NASA's Wide-field Infrared Survey Explorer, or WISE, the cloud can be seen with a decidedly more ghoulish appearance.

An uncommon, all-red aurora borealis or Northern Light appeared over the skies of the city of Independence in Missouri at 2 p.m. ET Oct. 24.

Comet Elenin, which in August further aggravated Internet hoax following Harold Camping's May 21 Doomsday prophecies early this year, is no more, NASA said Tuesday.

The 15th NASA Extreme Environment Mission Operations (NEEMO) ended ahead of schedule due to the predicted path of Hurricane Rina.

ROSAT, a German research satellite, re-entered Earth's atmosphere over the Bay of Bengal at 9:50 p.m. EDT on Saturday, but it remains unclear whether any parts of the satellite hit the Earth's surface.

When 74-year-old Joann Davis of Lake Elsinore contacted NASA on May 10th, she was looking for a buyer for the piece of moon rock her dead husband left her. However, she was in for a shock.

The comet discovered in December became popularized as a doomsday comet since astronomers expected it to fly close to the Earth and the comet resembled ancient apocalyptic prophesies.

A 2,000-year old mystery that has puzzled astronomers and researchers has finally been solved, with the help of infrared observations from NASA's Spitzer Space Telescope and Wide-field Infrared Survey Explorer (WISE).

Employees of NASA's Jet Propulsion Laboratory near Los Angeles were advised to stay indoors on Tuesday after a 200-pound bear was spotted roaming the campus.

Unusually beautiful northern lights, or aurora borealis, were seen unusually far south over the skies of the United States on Monday night, thanks to a solar wind from the sun that sent the stunning light show for sky watchers.