Comet ISON- The faint speck of dust that will become the "comet of century" is now emitting a massive amount of carbon dioxide and dust, NASA announced. The comet is expected to pass through the solar system later this year.
Scientists have uncovered evidences that suggest that snow and precipitation may have been a common occurrence in Mars at some point in the past.
Boeing threw back the curtain Monday on its proposed spacecraft designed to shuttle NASA astronauts to and from the International Space Station (ISS).
Space probes Cassini and MESSENGER each pointed their cameras at Earth July 19 to capture images of our planet from the distant reaches of our solar system.
Bright and early Friday an Atlas V rocket carrying the second in a series of spacecraft designed to grow the US Navy's mobile communications network took off from Cap Canaveral's launch pad.
A gigantic coronal hole was spotted hovering over the Sun's north pole Thursday morning, NASA announced.
NASA is currently engaged in an effort to fix the Kepler telescope, which is primarily tasked with hunting for planets outside our solar system.
Planets orbiting cooler stars may be less likely to contain ice than those around hotter stars, researchers at the University of Washington have found.
The first ever mission to the Moon's south pole, likely to occur sometime in 2016, was announced Friday by the non-profit International Lunar Observatory (ILOA) and Moon Express, Inc., a privately funded "lunar resource company."
Amazon.com founder Jeff Bezos announced on his blog Friday that the rocket engines retrieved from the ocean's bottom back in March did in fact belong to the Apollo 11 spacecraft.
Astronomers have gained a rare look into the Milky Way's early days through the help of the Hubble Space Telescope, determining the orbital motion of two distinct populations of stars in an ancient globular star cluster. In doing so, NASA reports, the scientists have been able to provide proof they formed at different times.
In a far-off and infant planetary system, astronomers have for the first time observed a snow line. The find promises to reveal new information about the formation of planets and comets, as well as factors that determine the composition of the cosmic masses.
Mars once boasted a cushy atmosphere that mostly dissipated roughly 4 billion years ago, a pair of new papers report.
Earth will soon find itself at the center of eager paparazzi when not one but two NASA spacecraft - one studying Saturn and the other Mercury - move into place July 19 and 20 to photograph the blue planet.