'Cauliflower' Silica Formations on Mars: Evidence of Ancient Life?

Image of "cauliflower" silica formations found by the Spirit rover in 2008 near Home Plate in Gusev crater. Do they hold clues to ancient life on Mars? Photo Credit: NASA/JPL-Caltech

Image of “cauliflower” silica formations found by the Spirit rover in 2008 near Home Plate in Gusev crater. Do they hold clues to ancient life on Mars? Photo Credit: NASA/JPL-Caltech

Was there ever life on Mars? That is one of the longest-running and most debated questions in planetary science, and while there have been […]

NASA Announces Payloads for First SLS Mission

An SLS in its Block 1 configuration goes up, up, and away in this artist’s rendering. Image Credit: NASA/MSFC

It may still be almost three years into the future, but the maiden voyage of NASA’s gigantic Space Launch System (SLS) booster—destined to carry humans beyond low-Earth orbit for the first time in five decades—drew […]

Super Guppy Delivers Orion EM-1 Structure to KSC for 2018 Inaugural SLS Flight

The structure of the first Orion spacecraft destined to fly atop NASA's Space Launch System (SLS) rocket in late 2018 on Exploration Mission-1 (EM-1) arrived at the agency's Kennedy Space Center (KSC) in Florida Feb. 1, 2016. Photo Credit: Alan Walters / AmericaSpace

The structure of the first Orion spacecraft destined to fly atop NASA’s Space Launch System (SLS) rocket in late 2018 on Exploration Mission-1 (EM-1) arrived at the agency’s Kennedy Space Center (KSC) in Florida Feb. 1, 2016. Photo Credit: Alan Walters / AmericaSpace

The Orion spacecraft destined to fly atop NASA’s Space Launch System […]

'To Touch the Face of God': 30 Years Since the Loss of Challenger (Part 2)

Challenger's final crew, as they should be remembered: Positive and brilliant individuals, happily striving to explore space and further humanity's reach into the Universe. In the back row (left to right) Ellison Onizuka, Christa McAuliffe, Greg Jarvis and Judy Resnik. In the front row (left to right) Mike Smith, Dick Scobee, and Ron McNair. Image Credit: NASA

Challenger’s final crew, as they should be remembered: Positive and brilliant individuals, happily striving to explore space and further humanity’s reach into the Universe. In the back row (left to right) Ellison Onizuka, Christa McAuliffe, Greg Jarvis and Judy Resnik. In the front row (left to right) Mike Smith, Dick Scobee, and Ron McNair. […]

'Obviously A Major Malfunction': 30 Years Since the Loss of Challenger (Part 1)

The infamous image, flashed around the world on 28 January 1986, immediately after Challenger's tragic destruction. The disaster stalled the shuttle program for almost three years. Photo Credit: NASA

The infamous image, flashed around the world on 28 January 1986, immediately after Challenger’s tragic destruction. The disaster stalled the shuttle program for almost three years. Photo Credit: NASA

Thirty years ago, on 28 January 1986, one of the worst and most public disasters in U.S. space history unfolded with horrifying suddenness in the […]

Data From New Horizons Reveals More Water Ice on Pluto Than Previously Thought

False-color, infrared maps of Pluto from New Horizons, showing regular detection method of water ice on the left and the more sensitive technique on the right. Image Credit: NASA/JHUIAPL/SwRI

False-color, infrared maps of Pluto from New Horizons, showing regular detection method of water ice on the left and the more sensitive technique on the right. Image Credit: NASA/JHUIAPL/SwRI

New Horizons has shown Pluto to be a diverse world, more so than many scientists had anticipated, with tall mountain ranges, vast glaciers, a blue-colored […]

On Challenger's 30th Anniversary, NASA Reflects On its Fallen Heroes

Floral tributes offer a touch of color against the drab gray and black of the Space Mirror Memorial and the day itself. Photo Credit: Talia Landman/AmericaSpace

For NASA, the fourth and fifth weeks of each year have always carried a somber mood of reflection and resolve, in which the glories of past successes—including Voyager […]

Incredible Opportunity: '90-Day Rover' Celebrates 12th Anniversary on Mars

Opportunity examining the rock outcrop called "Private John Potts" on the southern side of Marathon Valley. The rover has just passed its 12th anniversary milestone and is still going strong. Photo Credit: NASA/JPL-Caltech

Opportunity examining the rock outcrop called “Private John Potts” on the southern side of Marathon Valley. The rover has just passed its 12th anniversary milestone and is still going strong. Photo Credit: NASA/JPL-Caltech

We’ve all seen the commercials for the Energizer Bunny, which keeps going and going and going. … It just never seems […]

SpaceX Ready for Ambitious Year of Construction at Texas Launch Site, USAF Certifies Upgraded Falcon-9

Artist's rendering of SpaceX's commercial launch complex in south Texas. Image Credit: SpaceX

Artist’s rendering of SpaceX’s commercial launch complex in south Texas. Image Credit: SpaceX

Sixteen months after ground was initially broken at Boca Chica—located about 20 miles (32 km) east of Brownsville, Texas, just northwest of the mouth of the Rio Grande—SpaceX is ready for an ambitious year of construction work at the place which […]

Mysterious World: 30 Years Since Voyager 2's Encounter With Uranus (Part 2)

Uranus and its six largest moons, from left Puck, Miranda, Ariel, Umbriel, Titania and Oberon. Image Credit: NASA

Uranus and its six largest moons, from left Puck, Miranda, Ariel, Umbriel, Titania, and Oberon. Image Credit: NASA

At 12:59 p.m. EST (5:59 p.m. GMT) today, exactly three decades passed since NASA’s Voyager 2 spacecraft became the first machine fashioned by human hands to visit Uranus, the seventh planet in line from the Sun. […]