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The Great American Solar Eclipse of Aug. 21, 2017, as seen over Madras, Oregon.

On This Day in Space! Aug. 21, 1914: Total Solar Eclipse Expedition Crashed by WWI

By Hanneke Weitering

On Aug. 21, 1914, a total solar eclipse temporarily darkened skies across Europe and Asia. See how it happened in our "On This Day in Space" video series!

A Russian Soyuz 2.1a rocket carrying an upgraded Soyuz space capsule (and the humanoid robot Skybot F-850) stands atop Launch Site No. 31 at Baikonur Cosmodrome, Kazakhstan. The rocket will launch to the International Space Station on Aug. 21, 2019 at 11:38 p.m. EDT (0338 Aug. 22 GMT).

Russia Launching Humanoid Robot to Space Station Tonight: Watch Live

By Mike Wall

Russia is launching a Soyuz spacecraft on a test flight to the International Space Station tonight (Aug. 21), and you can watch the action live.

NASA astronaut Mike Hopkins on a spacewalk in 2013.

Watch Live: Spacewalking Astronauts to Install Space Station Docking Port!

By SPACE.com Staff

"Brother," Episode 201, Pictured: Tig Notaro as Chief Engineer Reno of the CBS All Access series "Star Trek: Discovery."

Comedian Tig Notaro and Skater Tony Hawk Talk NASA's James Webb Space Telescope on Twitter

By Chelsea Gohd

Comedian Tig Notaro and Skater Tony Hawk took to Twitter to support NASA's James Webb Space Telescope.

NASA astronaut Christina Koch (right) gives a fist pump to astronaut Andrew Morgan, also of NASA, during a spacesuit check ahead of an Aug. 21, 2019 spacewalk outside the International Space Station.

Two Astronauts Are Spacewalking Outside the International Space Station Today! Watch It Live

By Passant Rabie

Two astronauts are taking a spacewalk outside the International Space Station today (August 21) to install a new docking port.

NASA plans to launch the Europa Clipper mission in 2023 or 2025.

NASA's Europa Clipper Mission to Jupiter's Icy Moon Clears Big Hurdle on Path to Launch

By Mike Wall

A highly anticipated NASA mission to Jupiter's possibly life-supporting moon Europa remains on track for a mid-2020s launch.

Skywatchers can find Uranus and the Moon sharing the sky today (Aug. 21).

Look Up! Uranus and the Waning Gibbous Moon Share the Sky

By Chelsea Gohd

Just before dawn today (Aug. 21), skywatchers will be able to spot both Uranus and the waning gibbous moon.

An illustration of a spacecraft powered by nuclear thermal propulsion.

Nuclear Propulsion Could Be 'Game-Changer' for Space Exploration, NASA Chief Says

By Mike Wall

Humanity's next giant leap could be enabled by nuclear thermal propulsion, NASA Administrator Jim Bridenstine said.

Russia's Skybot F-850: "Not a Terminator" but a space robot, and will launch to the International Space Station on a Soyuz space capsule in August 2019.

Meet Skybot F-850, the Humanoid Robot Russia Is Launching into Space

By Tom Metcalfe

When a Russian Soyuz spacecraft launches from Kazakhstan for the International Space Station Wednesday, it will carry a humanoid robot called Skybo F-850.

Vice President Mike Pence speaks at the sixth meeting of the National Space Council at the National Air and Space Museum in Chantilly, Va., on Aug. 20, 2019.

New US Space Command Will Launch Next Week, VP Pence Says

By Hanneke Weitering

The United States Space Command will officially be up and running by the end of the month, Vice President Mike Pence said today (Aug. 20) at a meeting of the National Space Council.

An illustration of exoplanet LHS 3844b, which may have a rocky surface similar to that of Earth's moon.

This Weird, Rocky Planet Has No Atmosphere

By Passant Rabie

A nearby, rocky exoplanet may be just a plain rock with no atmosphere — supporting a theory that planets orbiting small stars are more susceptible to lacking an atmosphere.

NASA has issued a request for proposals for American companies to design spacecraft that will deliver supplies to the lunar Gateway. This effort will support the agency's Artemis program.

NASA Wants Ideas for Private Cargo Ships to Supply a Lunar Gateway

By Chelsea Gohd

NASA has called for companies to submit proposals to create spacecraft that will deliver cargo to the lunar gateway.

An artist's illustration of India's Chandrayaan-2 orbiter (bottom) and the Vikram lander, which carries the Pragyan rover, in orbit around the moon.

India's Chandrayaan-2 Moon Mission Successfully Enters Lunar Orbit

By Meghan Bartels

India's Chandrayaan-2 mission has ticked off another key milestone in its journey to land safely on the moon: The spacecraft has successfully entered lunar orbit.

An artist's visualization of a black hole swallowing a neutron star.

Did a Black Hole Swallow a Neutron Star 900 Million Years Ago?

By Chelsea Gohd

Researchers at LIGO and Virgo may have detected a gravitational-wave signal from the merger between a black hole and neutron star. This would be a major first.

Artist's illustration of Astrobotic's Peregrine lander on the surface of the moon.

Astrobotic's Private Moon Lander Will Launch on a Vulcan Centaur Rocket in 2021

By Mike Wall

A United Launch Alliance Vulcan Centaur rocket will send Astrobotic's Peregrine lander on its way toward Earth's nearest neighbor two years from now.

Vice President Mike Pence, chairman of the National Space Council, will preside over the sixth meeting of the organization on Aug. 20, 2019.

Vice President Pence Chairs Space Council Meeting Today: Watch It Live

By Mike Wall

The National Space Council (NSC) will convene for the sixth time today morning (Aug. 20), and you can watch the proceedings live.

SpaceX's Starman mannequin sits inside Elon Musk's red Tesla Roadster with Earth in the background, shortly after the initial launch of SpaceX’s Falcon Heavy rocket on Feb. 6, 2018.

SpaceX's Starman and Elon Musk's Tesla Have Made a Lap Around the Sun

By Mike Wall

The deep-space duo have come full circle.

Former NASA astronaut Mike Massimino floats in zero gravity while building a NASA-inspired Lego set.

Watch Astronaut Mike Massimino Build a Lego Mars Shuttle in Zero Gravity

By Chelsea Gohd

In a new video, former NASA astronaut Mike Massimino unboxes and assembles a new, NASA-inspired Lego set in zero gravity.

China's private Smart Dragon-1 rocket launches its first orbital mission on Aug. 17, 2019.

China's Private 'Smart Dragon-1' Rocket Aces 1st Mission

By Mike Wall

Development of the smallsat launcher took less than 18 months.

A depiction showing how close Apophis will pass to Earth on Apr. 13, 2029, compared to the International Space Station (in purple) and other satellites (in blue).

Let's Talk Asteroid Apophis, Planetary Defense and Elon Musk

By Meghan Bartels

It's time to talk about Apophis again, I guess. Please calm down first.