On 60th Anniversary of Explorer 1, SpaceX Successfully Launches SES-16/GovSat-1 Payload to Orbit

Rising against the clear blue Florida sky, the Upgraded Falcon 9 delivers SES-16/GovSat-1 to orbit. In the foreground is the Vehicle Assembly Building (VAB). Photo Credit: Mike Killian/AmericaSpace

Six hours shy of six full decades since the launch of America’s first man-made “moon”, a U.S.-built rocket has smoothly delivered SES-16/GovSat-1, one of the world’s […]

75th Atlas V Successfully Lofts SBIRS GEO-4 Infrared Warning Sentinel to High Orbit

A long exposure view tonight as ULA’s Atlas-V successfully launched America’s fourth critical Space Based Infrared System Geosynchronous Orbit (#SBIRS) spacecraft. Photo Credit: Alan Walters / AmericaSpace

After wrapping up one of its quietest years on record in 2017, with only eight launches across its Delta IV, Atlas V and Delta II fleet, United […]

Rediscovering the Moon: 20 Years Since Lunar Prospector

Launched 20 years ago, Lunar Prospector returned significant data pertaining to the Moon’s gravity, internal composition, origins and water-ice content. Image Credit: NASA

Twenty years ago, NASA’s Lunar Prospector spacecraft began an 18-month mission of discovery, revealing the Moon to potentially harbor vast water-ice reserves at its poles and offering tantalizing clues of a […]

SLC-40 Ready for Return to Flight, With Fourth ISS-Bound Dragon of 2017

The CRS-6 Dragon spacecraft is robotically detached from the International Space Station (ISS) in May 2015. Friday’s CRS-13 mission will reuse the pressurized module of the CRS-6 Dragon. Photo Credit: Terry Virts/Twitter/NASA

SpaceX stands ready to launch its fourth Dragon cargo mission of 2017 to the International Space Station (ISS) at 10:35 a.m. EST […]

OA-8 Cygnus Mission to Honor Gene Cernan, 45 Years After Last Moonwalks

The OA-8 Cygnus, pictured in the clean room, with an image of its astronaut namesake, veteran Moonwalker Gene Cernan. Photo Credit: Elliot Severn/AmericaSpace

Only months before its purchase by Northrop Grumman is expected to be finalized, Orbital ATK plans to launch its next Cygnus cargo freighter (OA-8) to the International Space Station (ISS), no […]

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 […]