'Easier to Destroy Than Create': 15 Years Since STS-105 (Part 2)

Newly stocked and newly staffed, the International Space Station (ISS) disappears into the blackness as Discovery departs. Photo Credit: NASA

STS-105 Mission Specialist Dan Barry translates along the U.S. Destiny lab during one of the flight’s two EVAs. Photo Credit: NASA

Fifteen years have now passed since Shuttle Discovery dropped off and picked up crew members at the International Space Station (ISS) and supported a pair of Extravehicular Activities (EVAs) to transition the multi-national […]

'To Train a Mission': 15 Years Since STS-105 (Part 1)

Fifteen years have now passed since STS-105 exchanged crews and supplies at the International Space Station (ISS). Photo Credit: NASA

Fifteen years have now passed since STS-105 exchanged crews and supplies at the International Space Station (ISS). Photo Credit: NASA

Fifteen years ago, this month, 10 astronauts and cosmonauts from the United States and Russia celebrated 1,000 days of orbital operations for the International Space Station (ISS). In August 2001, Shuttle Discovery’s STS-105 astronauts—Commander Scott […]

Can We Send a Probe to Proxima Centauri? Yes, But it May Get Banged Up on the Way There

Artist's conception of a Starshot spacecraft, a tiny circuit board-like wafer attached to a solar sail. Image Credit: breakthroughinitiatives.org

Artist’s conception of a Breakthrough Starshot spacecraft, a tiny circuit board-like “wafer” attached to a lightsail. Image Credit: Breakthrough Initiatives

Now that we know the closest star system to us has at least one planet, an Earth-mass and potentially habitable one at that, there is one big question a lot of people are asking: Can […]

Pale Red Dot: Astronomers Discover Potentially Habitable Exoplanet Orbiting Nearest Star

Artist's conception of what Proxima b might look like. It is just slightly more massive than Earth and orbits in its star's habitable zone. Temperatures might allow liquid water to exist on its surface. A potentially habitable world, it is also now the closest known exoplanet. Image Credit:
ESO/M. Kornmesser

Artist’s conception of what Proxima b might look like. It is just slightly more massive than Earth and orbits in its star’s habitable zone. Temperatures might allow liquid water to exist on its surface. A potentially habitable world, it is also now the closest known exoplanet. Image Credit: ESO/M. Kornmesser

Astronomers today announced one […]

NASA's Europa Mission Facing Possible Budget Cuts in 2017

Artist's conception of the Europa Clipper spacecraft near Europa. Image Credit: NASA/JPL-Caltech

Artist’s conception of the Europa Clipper spacecraft near Europa. Image Credit: NASA/JPL-Caltech

For a long time now, there has been growing interest in sending a mission back to Jupiter to better study one moon in particular: Europa. Previous missions such as Voyager and Galileo showed us this world up close for the first time, […]

Record-Breaker Jeff Williams to Become America's Most Experienced Astronaut Tomorrow

In the wee hours of tomorrow morning (Wednesday), Jeff Williams will become the United States' most flight-experienced astronaut. Photo Credit: NASA

In the wee hours of tomorrow morning (Wednesday), Jeff Williams will become the United States’ most flight-experienced astronaut. Photo Credit: NASA

At 4:56 a.m. EDT tomorrow (Wednesday, 24 August), NASA astronaut Jeff Williams—the incumbent skipper of Expedition 48, aboard the International Space Station (ISS)—will officially become the United States’ most seasoned spacefarer. He will […]

'An Even Better Friend': 45 Years Since the Apollo 17 Decision (Part 2)

Standing near a huge boulder, overlooking the scenic grandeur of the Taurus-Littrow valley, Jack Schmitt became the first - and so far only - professional geologist to visit another world. His selection as a member of the Apollo 17 crew came at the end of a long and difficult process, which saw him overlooked for an assignment time and time again...and eventually resulted in Joe Engle losing his own seat on a lunar voyage. Photo Credit: NASA

Forty-five years ago, this month, the names of the final crew of lunar explorers of the 20th century were announced. Photo Credit: NASA

Forty-five years ago, this month, NASA made the decision which would close out human exploration of the lunar surface for more than two generations: the selection of the final crew to […]

'I Didn't Feel Any Obligation': 45 Years Since the Apollo 17 Decision (Part 1)

Forty years after Apollo 17, Jack Schmitt remains the only professional geologist to practice his art on another world. Pictured in this view with Old Glory at Taurus-Littrow, he is backdropped by the two celestial bodies upon which he had based his entire career: the Moon and the Earth. Photo Credit: NASA

As Project Apollo wore on, the intensity of lobbying by the scientific community to get geologist-astronaut Jack Schmitt to the Moon increased. Originally assigned to the Apollo 15 backup crew, Schmitt might have flown Apollo 18, prior to a sweeping cancelation of the final missions in the program. Photo Credit: NASA

For almost five […]

Space Station Open for Commercial Crew, As EVA-36 Team Installs IDA-2

Kate Rubins will become only the 7th woman in history to make two EVAs on Thursday. Photo Credit: NASA TV

The International Docking Adapter (IDA)-2 was installed onto Pressurized Mating Adapter (PMA)-2, at the forward end of the space station’s Harmony node. Image Credit: NASA

More than sixty months since it last saw the arrival of a human-piloted vehicle, Pressurized Mating Adapter (PMA)-2 at the extreme forward “end” of the International Space Station (ISS) […]

'Weird Object' Discovered Beyond Neptune: A Clue in the Quest for Planet Nine?

The newly discovered object called Niku is a real oddity (artist's conception). It is also part of a group of many such objects far past Neptune in the outer Solar System. Image Credit: ESO/L. Calçada/Nick Risinger

The newly discovered object called Niku is a real oddity (artist’s conception). It is also part of a group of many such objects far past Neptune in the outer Solar System. Image Credit: ESO/L. Calçada/Nick Risinger

For the most part, the Solar System seems to be a rather well-ordered place; the planets, dwarf planets, […]