Feed aggregator

Halloween skies to include dead comet flyby

Science Daily: Comets and Asteroids -

The large space rock that will zip past Earth this Halloween is most likely a dead comet that, fittingly, bears an eerie resemblance to a skull. Scientists observing asteroid 2015 TB145 with NASA's Infrared Telescope Facility (IRTF) on Mauna Kea, Hawaii, have determined that the celestial object is more than likely a dead comet that has shed its volatiles after numerous passes around the sun.

NASA spots the 'Great Pumpkin': Halloween asteroid a treat for radar astronomers

Science Daily: Comets and Asteroids -

NASA scientists are tracking the upcoming Halloween flyby of asteroid 2015 TB145 with several optical observatories and the radar capabilities of the agency's Deep Space Network at Goldstone, California. The asteroid will fly past Earth at a safe distance slightly farther than the moon's orbit on Oct. 31 at 10:01 a.m. PDT (1:01 p.m. EDT). Scientists are treating the flyby of the estimated 1,300-foot-wide (400-meter) asteroid as a science target of opportunity, allowing instruments on "spacecraft Earth" to scan it during the close pass.

Saturn's geyser moon shines in close flyby views

Science Daily: Saturn -

NASA's Cassini spacecraft has begun transmitting its latest images of Saturn's icy, geologically active moon Enceladus, acquired during the dramatic Oct. 28 flyby in which the probe passed about 30 miles (49 kilometers) above the moon's south polar region. The spacecraft will continue transmitting its data from the encounter for the next several days.

High-tech methods study bacteria on the International Space Station

Science Daily: Comets and Asteroids -

Where there are people, there are bacteria, even in space. But what kinds of bacteria are present where astronauts live and work? In a recent study, researchers used state-of-the-art molecular analysis to explore the microbial environment on the International Space Station. They then compared these results to the bacteria found in clean rooms, which are controlled and thoroughly cleaned laboratory environments on Earth.

Spacewalk Selfie

NASA: Image of the Day -

Expedition 45 Commander Scott Kelly took this photograph during a spacewalk on Oct. 28, 2015. Sharing the image on social media, Kelly wrote, "#SpaceWalkSelfie Back on the grid! Great first spacewalk yesterday. Now on to the next one next week. #YearInSpace"

Origin of organic matter in Apollo lunar samples revealed by new NASA study

Science Daily: Comets and Asteroids -

A team of NASA-funded scientists has solved an enduring mystery from the Apollo missions to the moon -- the origin of organic matter found in lunar samples returned to Earth. Samples of the lunar soil brought back by the Apollo astronauts contain low levels of organic matter in the form of amino acids. Certain amino acids are the building blocks of proteins, essential molecules used by life to build structures like hair and skin and to regulate chemical reactions.


Subscribe to astrofoto.org aggregator