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Astronaut Richard F. Gordon Jr., pilot for the Gemini-11 spaceflight, returns to the hatch of the spacecraft following extravehicular activity (EVA) on Sept. 13, 1966. This picture was taken over the Atlantic Ocean at approximately 160 nautical miles above Earth's surface.

On This Day in Space! Sept. 14, 1966: Gemini 11 Sets All-Time Altitude Record

By Hanneke Weitering

On Sept. 14, 1966, NASA's Gemini 11 mission set an all-time spaceflight altitude record. See how it happened in our "On This Day in Space" video series!

When NASA's Mars Reconnaissance Orbiter flew over Schroeter Crater on the Red Planet, it captured views of some interesting smaller craters within the crater's floor. The two impact craters shown here are located inside Schroeter Crater, which is about 190 miles (300 kilometers) wide, and they contain some intricate dune structures on their own crater floors. These Martian dunes were shaped by wind, much in the same way that dunes form on Earth.

Space Photos: The Most Amazing Images This Week!

By Doris Elin Urrutia

Here are our picks for the most amazing space photos of the week.

An artist's depiction of the Chandrayaan-2 lander, Vikram, preparing to alight on the lunar surface. The procedure occurred on Sept. 6, 2019, but appears to have gone wrong, with the Indian space agency losing contact with the lander late in the maneuver.

US Moon Landing Hopefuls Watch Silent India Lander — and Learn

By Meghan Bartels

In the wake of the apparent crash of India's Chandrayaan-2 lunar lander, NASA and U.S. companies are looking for insights to inform their own moon shots.

Bigelow Aerospace has constructed a ground-test unit of its massive Mars Transporter Testing Unit BA-330 space habitat for NASA tests on Earth.

NASA Puts Bigelow Aerospace's Giant Inflatable Space Habitat Prototype to the Test (Photos)

By Mike Wall

NASA is currently conducting a two-week ground test on Bigelow Aerospace's B330 habitat here at the company's headquarters, assessing the module's suitability as a deep-space astronaut abode.

A structural test article for NASA's Space Launch System rocket is loaded onto the test stand at the Marshall Space Flight Center in Huntsville, Alabama, on Jan. 14, 2019. At 149 feet (45 meters) long, it is the largest piece of hardware for the rocket's core stage.

Watch NASA's SLS Megarocket Get Ready for New US Moon Missions (Video)

By Elizabeth Howell

NASA is hard at work getting its new, moon-bound rocket and spacecraft ready for Artemis 1, the next mission of the agency's program, which aims to eventually land humans on the lunar surface.

Apollo 17 astronaut Harrison Schmitt collects samples during an excursion made on Dec. 11, 1972.

Future Moonwalkers Need Geology Training, Apollo 17's Harrison Schmitt Says

By Mike Wall

The only geologist ever to set foot on the moon thinks future lunar explorers should be a little more like him.

A New York City Fire Department patch floats in the Cupola window of the International Space Station on the 18th anniversary of the 9/11 terror attacks.

Remembering 9/11: NASA Astronauts Pay Tribute from Space

By Hanneke Weitering

On the 18th anniversary of the 9/11 terror attacks, NASA astronauts paid tribute to the heroes who risked their lives to save others on that day by tweeting a special message from space.

new horizons spacecraft

Long After Historic Flybys, NASA's New Horizons Is Still Pioneering Science in the Kuiper Belt

By Meghan Bartels

New Horizons made an epic flyby of a Kuiper Belt object to ring in the New Year — but scientists need brand-new observations to truly understand that data.

The Mitsubishi Heavy Industries H-IIB rocket carrying the HTV-8 spacecraft atop its launchpad at Tanegashima Space Center in Japan on Sept. 10, 2019.

Launchpad Fire Forces Japan to Postpone Cargo Ship Launch to Space Station: Report

By Elizabeth Howell

Japan called off a planned cargo ship launch to the International Space Station today (Sept. 10) after a fire erupted on the launch platform for the mission's rocket, according to press reports.

An ArianeWorks reusable Themis rocket prototype returns to Earth in a video animation of the group's new reusable rocket program.

Europe's ArianeWorks Aims for Reusable Rockets (with a Very SpaceX Look)

By Elizabeth Howell

Veteran launch provider Arianespace's parent Ariane Group has teamed up with the French space agency CNES for ArianeWorks, a project for reusable rockets.

A Mitsubishi Heavy Industries-built H-IIB rocket carrying the HTV-8 cargo ship for the Japan Aerospace Exploration Agency stands atop its launchpad at Tanegashima Space Center for a Sept. 10, 2019 launch.

Japan to Launch Robotic Cargo Ship to Space Station Today. Watch It Live

By Tariq Malik

Liftoff is at 5:33 p.m. EDT (2133 GMT).

Artist’s illustration of a Breakthrough Starshot probe arriving at the potentially Earth-like planet Proxima Centauri b. A representation of laser beams is visible emanating from the corners of the craft’s lightsail.

Is Interstellar Travel Really Possible?

By Paul Sutter

Interstellar flight is a real pain in the neck.

NASA astronaut Serena Auñón-Chancellor speaks with Sanjay Gupta during the International Space Station Research and Development Conference in Atlanta on July 30, 2019.

Astronaut-Doctor Serena Auñón-Chancellor Explains How Medical Research on Space Station Helps Patients on Earth

By Nola Taylor Redd

Astronaut and medical doctor Serena Auñón-Chancellor weighs in on how experiments on the ISS help medical research on Earth.

Backdropped by Earth's horizon and the blackness of space, the first unpiloted Japanese H-2 Transfer Vehicle (HTV) approaches the International Space Station on Sept. 17, 2009.

Watch Live Today! Japan Launching HTV-8 Cargo Ship @ 5:33 pm ET

By SPACE.com Staff

A Japanese H-2B rocket will launch the HTV-8 cargo ship to the International Space Station today, Sept. 10, at 5:33 p.m. EDT (2133 GMT). Here's how to watch it live.

Rocket Lab launched an Electron rocket on the "Look Ma, No Hands" mission to orbit four cubesats into orbit from Mahia Peninsula, New Zealand on Aug. 19, 2019. The company is developing a reusable rocket system, building a U.S.-based launch pad in Virginia and developing Photon, a unique, end-to-end satellite service.

What's Next for Rocket Lab? A Q&A With CEO Peter Beck

By Chelsea Gohd

Rocket Lab Founder and CEO Peter Beck discusses the future of the aerospace company with Space.com.

A still from a video produced by ISRO showing how its Vikram lander was meant to touch down on the moon on Sept. 6, 2019.

India's Silent Moon Lander Could Be in One Piece After 'Hard Landing': Reports

By Meghan Bartels

The quest to contact India's silent moon lander after hints of a crash continues, with images suggesting Vikram remains in one piece on the lunar surface.

Made In Space has produced ZBLAN optical fiber in orbit using this machine. The company plans to launch a second, bigger ZBLAN-manufacturing facility to the International Space Station in the next year or so.

Made In Space to Step Up Off-Earth Production of Valuable Optical Fiber

By Mike Wall

Made In Space intends to launch another ZBLAN-manufacturing machine to the International Space Station within the next year or so.

K. Sivan, head of the India Space Research Organisation, holds a lunar model on Aug. 26, 2019, as the country's Chandrayaan-2 spacecraft flew toward the moon.

India Looks Beyond the Moon to Mars, Venus and Astronaut Missions

By Elizabeth Howell

India's space program may have hit a major stumbling block on the road to the moon, but the country has already made major strides in lunar and Mars exploration.

A Russian Soyuz MS-14 carrying the humanoid Skybot F-850 robot and other gear is seen in this view from an International Space Station camera just after undocking on Sept. 6, 2019. The spacecraft landed in Kazakhstan later that day.

Unpiloted Soyuz Capsule Returns to Earth with Humanoid Robot on Board

By Tariq Malik

An uncrewed Russian Soyuz returned to Earth Friday (Sept. 6), bring a humanoid robot home to wrap up first-of-its-kind test flight to the International Space Station.

Indian Prime Minister Narendra Modi addresses the nation after the Chandrayaan-2 lunar lander Vikram apparently failed during its touchdown attempt on Sept. 6, 2019.

Here's What India's Prime Minister Modi Told Chandrayaan-2 Scientists After Moon Landing Went Awry

By Tariq Malik

"There will be a new dawn and a brighter tomorrow very soon."