Space News & Blog Articles

The Soyuz MS-25/71S spacecraft carrying commander Oleg Kononenko, Nikolai Chub and NASA astronaut Tracy Dyson undocked from the International Space Station early Monday as the two spacecraft were passing 260 miles above eastern Mongolia. Image: NASA

Cosmonaut Oleg Kononenko, now the world’s most experienced spaceman, first-time flier Nikolai Chub and NASA veteran Tracy Dyson undocked from the International Space Station and returned to Earth Monday, closing out a record-setting mission with a picture-perfect landing in Kazakhstan.

The Hubble tension, a longstanding problem in cosmology, could potentially be relieved if early dark energy is taken into account.

The largest Einstein Cross dwells among a rare arrangement of seven gravitationally lensed galaxies called the Carousel Lens located between 7 billion and 12 billion light-years from Earth.

Three crewmates have landed Earth after a record-long stay on the International Space Station (ISS) for two of them. For one, the 374 days has amounted to only a third of his total time in space.

Astronomers have cataloged over 500 gamma-ray bursts, which are some of the most violent explosions in the cosmos.

A team of scientists thinks a clustering of ancient impact craters points to a temporary ring around Earth hundreds of millions of years ago.

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There’s a mystery out there in deep space – and solving it will make Earth safer. That’s why the European Space Agency’s Hera mission is taking shape – to go where one particular spacecraft has gone before.

The Sentinel-1B satellite, the second satellite of the Copernicus Sentinel-1 mission, completed its disposal process – which included lowering its orbit and passivating its systems to ensure re-entry into Earth’s atmosphere within 25 years.

SpaceX's Crew-9 mission to the International Space Station on Sept. 26 will be a rescue mission of sorts, bringing up empty seats for two NASA astronauts currently in space without a ride home.

Canada's Avro Arrow supersonic jet was suddenly canceled in 1959, a controversial decision that benefited NASA. How is Canada preserving the few pieces of the aircraft that remain?

A NASA astronaut and two record-setting Russian cosmonauts are set to head back to Earth on Monday (Sept. 23), and you can watch their homecoming live.

The autumnal equinox brings fall to the Northern Hemisphere today as the sun passes directly over the equator at noon. But are day and night actually equal length today?

In late June, the Chang'e 6 lunar lander returned to Earth with samples of the moon. Now, the first paper about these samples has been published.

On Episode 129 of This Week In Space, Rod and Tariq talk with Pascal Lee about his Mars Simulation Base in the Arctic.

NASA is seeking the public's help for innovative solutions to help Artemis astronauts navigate in and around the lunar south pole.