The 'Floating Hills' of Pluto: Icebergs In a Frozen Nitrogen Sea

Icebergs on Pluto: the large blocks of water ice float in a "sea" of nitrogen ice and are thought to have broken off from the rugged and mountainous highlands. Image Credit: NASA/JHUAPL/SwRI

Icebergs on Pluto: The large blocks of water ice float in a “sea” of nitrogen ice and are thought to have broken off from the rugged and mountainous highlands. Image Credit: NASA/JHUAPL/SwRI

Pluto is a tiny world and incredibly distant from the Sun, so it was a pleasant surprise for scientists last summer when […]

'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. […]

City of Titusville Astronaut Memorial Ceremony Wraps Up Somber Week of Anniversaries, Remembrances

A single red carnation and, most touchingly, an apple decorate Christa McAuliffe's plaque at Titusville's Sand Point Park Saturday morning. Photo Credit: Alan Walters / AmericaSpace

A single red carnation and, most touchingly, an apple decorate Christa McAuliffe’s plaque at Titusville’s Sand Point Park Saturday morning. McAuliffe was the first Teacher in Space, but perished aboard Challenger on Jan. 28, 1986. Photo Credit: Alan Walters / AmericaSpace

The dates marked Jan. 27, 28, and Feb. 1 are downcast days in U.S. spaceflight […]

'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 […]

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 […]

The Real Mission Impossible: 30 Years Since Mission 61C (Part 1)

"Mission Impossible" finally launches as Columbia roars into the darkened Florida skies on 12 January 1986. Photo Credit: NASA

“Mission Impossible” finally launches as Columbia roars into the darkened Florida skies on 12 January 1986. Photo Credit: NASA

Though three decades have passed, January 1986 has become entrenched in humanity’s popular consciousness as one of the darkest months in space history, for on its 28th day the crew of Challenger were lost in […]

The Other Side of Spaceflight: An Interview with Rick Houston, Co-Author of 'Go, Flight!'

From NASA: "Overall view of the Mission Operations Control Room (MOCR) in the Mission Control Center (MCC), Building 30, Manned Spacecraft Center (MSC), showing the flight controllers celebrating the successful conclusion of the Apollo 11 lunar landing mission." Photo Credit: NASA

From NASA: “Overall view of the Mission Operations Control Room (MOCR) in the Mission Control Center (MCC), Building 30, Manned Spacecraft Center (MSC), showing the flight controllers celebrating the successful conclusion of the Apollo 11 lunar landing mission.” Go, Flight! discusses the flight controllers who made historic NASA missions “tick.” Photo Credit: NASA

The […]

'The Most Beautiful Thing': 30 Years Since Challenger's Last Successful Mission (Part 2)

In one of the final views of Challenger in space, the orbiter sails over the cloud-bedecked Earth, with the Spacelab D-1 module clearly visible in her payload bay. Photo Credit: NASA, via Joachim Becker/SpaceFacts.de

Thirty years ago, next week, Space Shuttle Challenger flew in space for the final time. Mission 61A—the ninth and last […]

'Dallas? You Mean the City?' 30 Years Since Challenger's Last Successful Mission (Part 1)

Thirty years ago, next week, Shuttle Challenger launched on her final successful mission. Photo Credit: NASA

It is a dismaying fact of history that the name “Challenger”—when spoken in relation to the second spaceworthy vehicle of NASA’s shuttle fleet—is so often associated only with the dreadful catastrophe which snuffed out seven lives on the […]

Many Twists and Turns: 25 Years Since STS-41 Sent Ulysses to the Sun (Part 1)

Ulysses drifts serenely above Earth in the moments after deployment on 6 October 1990, 25 years ago, this week. Shortly after this image was taken, the attached Inertial Upper Stage (IUS) and Payload Assist Module (PAM)-S boosters would propel the craft faster than any previous man-made object out of Earth’s gravitational clutches. Photo Credit: […]