Scientists Debate How to Search for Life on Europa in New Mission

Jupiter’s ice-covered moon Europa hides a water ocean beneath its surface. A return mission is now planned to help search for evidence of life there. Photo Credit: NASA/JPL

Jupiter’s moon Europa, with its subsurface ocean, is considered by many to be the best place in the Solar System to search for extraterrestrial life. With NASA […]

Rosetta’s Valentine’s Day Flyby Encounter Produces Stunning Comet Close-Ups

Backside view of Comet 67P/Churyumov-Gerasimenko Four image mosaic of Comet 67P/Churyumov-Gerasimenko comprising images taken on 14 February 2015 at 10:15 GMT just prior to closest approach from a distance of 12.6 km from the comet centre (about 10.6 km from the surface). For the comet centre distance, the image scale is 1.1 m/pixel. In […]

Mapping Planet Earth: 15 Years Since STS-99 (Part 2)

The Outboard Antenna of the Shuttle Radar Topography Mission (SRTM) extends 200 feet (60 meters) into space atop a mast extended from Endeavour’s payload bay. Photo Credit: NASA

Fifteen years ago, this week, the six-member crew of STS-99—Commander Kevin Kregel, Pilot Dom Gorie, and Mission Specialists Janet Kavandi, Janice Voss, Germany’s Gerhard Thiele, and […]

Mapping Planet Earth: 15 Years Since STS-99 (Part 1)

Computer-generated image of Endeavour performing radar observations with instruments in her payload bay and affixed to the deployable Outboard Antenna on STS-99. Image Credit: NASA

At the dawn of the year 2000, more precise radar maps existed of Venus—thanks to NASA’s Magellan imaging spacecraft—than of our own Home Planet. Although areas of Earth had […]

Exploring an Alien Sea: NASA Designs Submarine to Send to Titan

Artist’s conception of the Titan Submarine Phase I Conceptual Design. Much like submarines on Earth, the sub would explore the depths of one of Titan’s methane/ethane seas. Image Credit: NASA

Who wouldn’t want to go explore an alien sea? It seems that NASA would certainly like to, and the agency has unveiled a new submarine […]

New Technique Provides Better, Clearer Radar Images of Titan's Amazing Surface

Radar view of Ligeia Mare, a large hydrocarbon sea on Titan. The original version is on the left and the enhanced, “despeckled” version is on the right. Image Credit: NASA/JPL-Caltech/ASI

Saturn’s largest moon Titan is a fascinating world, uniquely alien yet eerily Earth-like in many ways, with its rain, rivers, lakes, seas, and massive […]

Like Superman: ESA's IXV Spaceplane Makes Successful Research Flight

AND IT’S OFF: A Vega launch vehicle lofts ESA’s IXV spaceplane to its suborbital mission. Photo Credit: ESA–S. Corvaja

It wasn’t Superman, but a spaceplane; however, it sure appeared to travel “faster than a speeding bullet,” as it cleared the pad in four seconds.

At 13:40 GMT (8:40 EST) today, the flight of the […]

Rosetta Captures Spectacular Comet Jets Blasting Away Ahead of Valentine’s Day Encounter

Comet 67P/Churyumov-Gerasimenko belching gas and dust This four-image mosaic comprises images taken from a distance of 28.7 km from the centre of Comet 67P/Churyumov-Gerasimenko on 3 February and released on 9 February 2015. The image resolution is 2.4 m/pixel and the individual 1024 x 1024 frames measure 2.5 km across. The mosaic measures 4.2 […]

Cassini Data Indicates Enceladus' Ocean Similar to Soda Lakes on Earth

The geysers of Enceladus, erupting through cracks in the ice at the south pole from a subsurface salty ocean or sea. Image Credit: NASA/JPL

Along with Jupiter’s infamous moon Europa, Saturn’s moon Enceladus is one of the most fascinating places in the Solar System, with its huge geysers of water vapor erupting from cracks […]

'The Most Complex So Far': What 2003 Might Have Been

Columbia roars into orbit for the 28th and final time on 16 January 2003. Eighty-two seconds into the ascent, a chunk of foam from her External Tank would spell disaster for the outcome of STS-107. Photo Credit: NASA

Twelve years ago, last weekend, Shuttle Columbia and the crew of STS-107—Commander Rick Husband, Pilot Willie […]