Speed and Power: Remembering Columbia's STS-52 Launch, 25 Years Later

Twenty-five years ago, STS-52 launched on a truly international mission, with U.S., European and Canadian participation. Photo Credit: NASA, via Joachim Becker/SpaceFacts.de

“A very long six seconds,” said STS-52 Commander Jim Wetherbee, of his final moments on Earth, “because by now, your brain’s working overtime!” A quarter-century ago, today, on 22 October 1992, Wetherbee […]

A Billion Miles to Saturn: 20 Years Since the Launch of Cassini

The second Titan IVB roars aloft on 15 October 1997, carrying the Cassini mission to Saturn. Photo Credit: NASA

In the pre-dawn darkness of 15 October 1997, exactly two decades ago, this very day, one of the largest and most powerful rockets ever brought to operational service was poised for launch on Space Launch […]

Complexity and Challenge: Dawn Project Manager Speaks of Difficult Voyage to Vesta and Ceres

This artist’s concept shows NASA’s Dawn spacecraft heading toward the dwarf planet Ceres. Credit: NASA/JPL-Caltech

A decade of operations in deep space is no longer a unique understanding, as we have seen in recent weeks, as Cassini ended 13 years of spectacular science at Saturn and the international Dawn mission celebrated ten years exploring […]

Two Missions to Two Worlds: Ten Years of Exploration by NASA's Dawn Spacecraft

A processed still image from Dawn with Ceres as a crescent as seen on April 10, 2015. Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

Ten years ago, NASA’s Dawn spacecraft launched atop a Delta II Heavy booster from Cape Canaveral Air Force Station, Fla., bound for one of the most audacious missions of exploration ever undertaken in human history. […]

Ten Years of Dawn: A Decade of Operations for Humanity's First Double-Orbiter

This artist’s concept shows NASA’s Dawn spacecraft heading toward the dwarf planet Ceres. Credit: NASA/JPL-Caltech

“I’m ecstatic,” said Sarah Gavit of NASA’s Jet Propulsion Laboratory (JPL) in December 2001, when the space agency announced that the Dawn mission to orbit and explore the dwarf planets Ceres and Vesta—a pair of worlds deep within the […]

And Then Silence: 25 Years Since the Rise and Fall of Mars Observer

What might have been? Artist’s concept of Mars Observer in orbit around the Red Planet. Image Credit: NASA

“Range Safety Command Destruct System has been armed…fuel valves are now being opened…”

It was Friday, 25 September 1992—a quarter-century ago—as NASA counted down the final moments on Earth of its first voyage to the Red […]

'Sustained Program of Exploration': 20 Years Since the Arrival of the Mars Global Surveyor

Artistic rendering of Mars, made from images taken with NASA’s Mars Global Surveyor spacecraft. Image Credit: Kees Veenenbos/MOLA Science Team/NASA

Twenty years ago, this week, NASA’s Mars Global Surveyor settled into orbit around the Red Planet, to begin what NASA described as “a sustained program of exploration” of our third-closest celestial neighbour after the […]

'Sitting On A Controlled Explosion': 25 Years Since the Space Shuttle's Half-Century Mission

 

Endeavour roars aloft, 25 years ago, this week, for the Space Shuttle’s 50th flight. Photo Credit: NASA, via Joachim Becker/SpaceFacts.de

Twenty-five years ago, this week, Space Shuttle Endeavour—the youngest member of NASA’s fleet of orbiter vehicles, built to replace the ill-fated Challenger—rocketed away from the Kennedy Space Center (KSC) in Florida, on a […]

Whitson Sets Endurance, EVA Records for Women, Wraps Up Ten-Month Space Station Expedition

Wrapping up the third long-duration mission of her career, Peggy Whitson has now spent over 665 days of her life away from Planet Earth. Photo Credit: NASA

The world’s most experienced female space traveler is tonight enjoying her first full day back on Earth, after returning from a third trip to the International Space […]

Launching in the Rain: The Delays and Ascent of Mission 51I

On the cusp of daybreak, Mission 51I spreads its wings on 27 August 1985, kicking off one of the most dramatic Shuttle flights in history. Photo Credit: NASA

Thirty-two years ago, today, Space Shuttle Discovery roared into the pre-dawn darkness from historic Pad 39A at the Kennedy Space Center (KSC), on an ambitious mission […]