Is 'Planet 9' Really a Second Massive Kuiper Belt?

The Kupier Belt is a massive collection of dwarf planet and asteroid-sized worlds orbiting far past Neptune. Is the hypothetical Planet 9 really a second such belt? Image Credit: T. Pyle (SSC)/JPL-Caltech/NASA

The Kuiper Belt is a massive collection of dwarf planet- and asteroid-sized worlds orbiting far past Neptune. Is the hypothetical Planet 9 really a second such belt? Image Credit: T. Pyle (SSC)/JPL-Caltech/NASA

The announcement of a possible large ninth planet in our Solar System way beyond Neptune last month caused a lot of excitement, […]

'Almost Worth the Entire Trip': 45 Years Since Apollo 14 (Part 1)

Al Shepard, pictured at Fra Mauro during Apollo 14 in early 1971. This was the planned landing site for Apollo 13. Photo Credit: NASA

Al Shepard, pictured at Fra Mauro during Apollo 14 in early 1971. This was the planned landing site for Apollo 13. Photo Credit: NASA

Forty-five years ago, this week, the sixth team of Apollo lunar explorers—and only the third to accomplish a landing on the Moon’s dusty surface—headed back to Earth after a mission […]

Edgar Mitchell, Sixth Apollo Moonwalker, Dies at 85

Ed Mitchell, who died Thursday, 4 February 2016, aged 85. Photo Credit: NASA, with thanks to Michael Galindo/AmericaSpace

Ed Mitchell, who died Thursday, 4 February 2016, aged 85. Photo Credit: NASA, with thanks to Michael Galindo/AmericaSpace

Forty-five years to the week since he arrived in lunar orbit and subsequently became one of only 12 humans ever to leave his footprints in the dust of another world, Apollo 14 astronaut Ed Mitchell has […]

All Webb Telescope's 18 Primary Gold-Coated Mirrors Now Installed to Unravel Mysteries of the Universe

From NASA: "Inside a massive clean room at NASA's Goddard Space Flight Center in Greenbelt, Maryland the James Webb Space Telescope team used a robotic am to install the last of the telescope's 18 mirrors onto the telescope structure." NASA/Chris Gunn

From NASA: “Inside a massive clean room at NASA’s Goddard Space Flight Center in Greenbelt, Maryland the James Webb Space Telescope team used a robotic am to install the last of the telescope’s 18 mirrors onto the telescope structure.” NASA/Chris Gunn

Construction of the James Webb Space Telescope (JWST), a NASA, European Space Agency […]

Veteran Astronaut Kevin Ford Departs NASA

Kevin Ford is reflected and inverted in a blob of water, during his five-month Expedition 33/34 increment. Photo Credit: NASA

Kevin Ford is reflected and inverted in a blob of water, during his five-month Expedition 33/34 increment. Photo Credit: NASA

Astronaut Kevin Ford—who piloted one of the twilight missions of shuttle Discovery’s glittering career, before commanding the International Space Station (ISS) for over 100 days—departed NASA on Friday, 29 January. The retired Air Force […]

'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 […]

'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 […]