Tooled Up for a Telescope: 20 Years Since the Second Hubble Servicing Mission (Part 1)

Barely illuminated by sunlight, Joe Tanner is pictured during EVA-4 on STS-82. Photo Credit: NASA

Twenty years have now passed since a seven-man rocketed into the night to begin the second servicing mission to the $1.5 billion Hubble Space Telescope (HST). Coming on the heels of the ambitious STS-61 shuttle flight in December 1993—during […]

A Martian Paradox: Curiosity Rover Findings Raise New Questions About Water on Ancient Mars

View from Curiosity of the Yellowknife Bay rock formation. Drilled samples here and elsewhere provided evidence that this region used to be at the bottom of a lake, but also that there are little or no carbonate mineral deposits, which should have been produced if the carbon dioxide atmosphere was thicker and warmer billions […]

NASA Outlines Science Heading to Space Station Aboard CRS-10 Dragon

CRS-10 will be the 10th dedicated Dragon to launch to the International Space Station (ISS). Photo Credit: NASA

NASA personnel, together with investigators and student scientists, gathered for a media teleconference earlier today (Wednesday, 8 February), to discuss the research payloads heading uphill aboard SpaceX’s next Commercial Resupply Services (CRS) Dragon mission to the […]

NASA's OSIRIS-REx Spacecraft to Search for Trojan Asteroids Near Earth

Artist’s depiction of OSIRIS-REx in orbit around Bennu. Currently, the spacecraft is searching for other Trojan asteroids near Earth. Image Credit: NASA

Asteroids are some of the most ancient objects in the Solar System, relics left over from the time when the planets first started forming and evolving. For this reason, scientists are very […]

'Lock the Doors': Remembering Columbia's Final Mission (Part 2)

As evidenced by the clock on the main screen at 14:15:05 GMT (9:15:05 am EST), this view of a tense Mission Control was acquired a quarter of an hour after the first sign of trouble…and a minute ahead of Columbia’s expected landing. By now, everyone was aware that all hope was gone and contingency […]

'So Thin and Fragile': Remembering Columbia's Final Mission (Part 1)

The dual-shift nature of STS-107 required the inclusion of sleep stations in Columbia’s middeck. In this image, Red Team members Laurel Clark, Rick Husband and Kalpana Chawla peek out of their bunks. Photo Credit: NASA

When Columbia’s payload bay doors opened at around midday EST on 16 January 2003—a few hours after NASA’s oldest […]

New Horizons Completes Another Course Adjustment in Preparation for 2019 Flyby of Next KBO

Artist’s conception of New Horizons approaching 2014 MU69 in 2019. Image Credit: NASA/JHUAPL/SWRI/Steve Gribben

Long after its incredible encounter with Pluto and its moons in 2015, the New Horizons spacecraft is continuing its journey deeper into the Kuiper Belt in the outer reaches of the Solar System. Mission scientists and engineers are now preparing […]

'Go at Throttle Up': Remembering the Sacrifice of the Challenger Seven (Part 2)

Flocks of terrified birds fly away in the face of Challenger’s roaring ascent from Pad 39B at 11:38 a.m. EST on 28 January 1986. Photo Credit: NASA, via Joachim Becker/SpaceFacts.de

Thirty-one winters have now passed since the frightful morning of Tuesday, 28 January 1986, when Space Shuttle Challenger roared into the crystal-blue Florida sky, […]

Lost Innocence: Remembering the Sacrifice of the Challenger Seven (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

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

Grissom, White, and Chaffee: On 50th Anniversary of Apollo 1 Fire, America Remembers

On the 50th anniversary of their loss, America remembers the sacrifice of (from left) Virgil “Gus” Grissom, Ed White, and Roger Chaffee. Photo Credit: NASA

At 6:31 p.m. EST on Friday, 27 January 1967, as night fell over Cape Kennedy in Florida, one of the worst disasters ever to befall America’s space program unfolded […]