In the most comprehensive radio study of Europa thus far, astronomers bolster what's already known about the icy moon, and then some.

The oddly shaped rock is likely the byproduct of a catastrophic collision millions of years ago.

Sally Ride made history aboard the Space Shuttle Challenger on June 18, 1983, becoming the first American woman in space 20 years nearly to the day after Soviet Valentina Tereshkova’s flight. In 1977, as she was finishing her Ph.D. in physics, Ride saw a newspaper ad placed by NASA to recruit astronauts. For the firstContinue reading "June 18, 1983: Sally Ride is the first American woman in space"

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The Russian space agency recently backed down from a plan to saw through a section of the space station.

A NASA investigation blamed poor training and procedures for damage to a 70-meter radio frequency antenna.

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper.

Some shareholders might object, but there is little they could do, legal experts say.

The company's suborbital vehicle launched on a secret government mission and ended up somewhere unexpected.

Elon Musk became the world's first trillionaire shortly after SpaceX debuted on the Nasdaq.

On June 16, 1963, 26-year-old Soviet cosmonaut Valentina Tereshkova made history by becoming the first woman to travel into space. A former factory seamstress, Tereshkova was an accomplished amateur parachutist with over 100 jumps — a vital skill, since Vostok cosmonauts ejected before landing. Selected from over 400 applicants in 1962, she underwent months ofContinue reading "June 16, 1963: Valentina Tereshkova is the first woman in space"

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X-59 flew at Mach 1.4 in preparation for debuting its quiet thump to the public.

Japan’s tiny SORA-Q rover showed what happened when SLIM landed upside down.

Caltech says its Deep Synoptic Array will be larger and 100-times faster than any radio telescope ever constructed.

The Hubble tension—a disagreement over the universe's expansion rate—has led to fears of a cosmology crisis, but is it actually that serious?

On June 14, 1949, a rhesus monkey named Albert II was launched into space aboard a V-2 rocket from White Sands, New Mexico. Prior to Albert II, animals including fruit flies, mice, and another monkey (Albert I) had been launched in rocket and balloon flights as part of American space biology research, but Albert II’sContinue reading "June 14, 1949: The first mammal in space"

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The agency gave a rosy update on Artemis III, a test flight for its goal to return humans to the moon, but experts say the timeline is ambitious.

Pioneer 10 holds the titles for many “firsts”: It was NASA’s first mission to the outer planets, the first spacecraft to fly beyond Mars, the first to traverse the asteroid belt, and the first to fly past Jupiter. It was also the first spacecraft placed on a trajectory to escape the solar system into interstellarContinue reading "June 13, 1983: Pioneer 10 leaves solar system"

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The agency gave a rosy update on Artemis III, a test flight for its goal to return humans to the moon, but experts say the timeline is ambitious.

Elon Musk said he had initially given SpaceX less than a 10 percent chance of succeeding. His rocket company has come a long way.

Elon Musk said he had initially given SpaceX less than a 10 percent chance of succeeding. His rocket company has come a long way.