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Eric and Wendy Schmidt are backing a start-up-like approach to building a giant space telescope and powerful ground observatories.
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After canceling a spacewalk planned for Thursday, the space agency’s administrator said it was erring on the side of caution and bringing a crew of four home in the coming days.
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Astronomers announced the discovery of a starless cloud of hydrogen gas, a pristine relic of the cosmos that is almost as old as time itself.
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In 2026, there will be journeys to the moon and Mars, new visions of the cosmos and a solar eclipse that might be worth traveling for.
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Some tech leaders are concerned that the artificial intelligence race will exhaust available land and energy. The solution might lie in orbit.
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Brian Cox once toured as a keyboardist in major rock and pop bands. Now he’s a particle physicist on a new world tour with a dazzling show he designed in an era of science disinformation and denial.
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A heritage of dark sky preservation means residents of Flagstaff welcome the season’s longer nights with prolonged views of the stars.
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An unusual object orbiting a rapidly spinning star might be a new phenomenon in the universe.
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A sale of insider shares at $421 a share would make Mr. Musk’s rocket company the most valuable private company in the world, as it readies for a possible initial public offering next year.
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He gave readers a comprehensive and lyrical account of the historic mission in 1969. His science coverage as a Pulitzer-winning journalist and an author took him around the world.
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The ability of Russia to launch astronauts to the International Space Station remains in limbo after an incident last week at the Baikonur base in Kazakhstan.
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With the government reopened, the space agency at last released pictures captured by a fleet of government spacecraft of an object that came from beyond our solar system.
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The ESCAPADE mission, which launched to space on a Blue Origin rocket on Thursday, breaks the mold of how planetary science missions typically come together.
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Starfront Observatories allows amateur astronomers to rent a spot for their telescopes and photograph the cosmos over a high-speed data connection.
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Four astronauts departed from the I.S.S. about a month earlier than scheduled because a crew member, who was not identified, has an undisclosed medical issue.
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In exchange for the land in Texas, the rocket and satellite company would give the government some of its own property nearby, documents show.
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A paraplegic engineer was part of a crew that made a suborbital journey on a spacecraft operated by Jeff Bezos’ private company, Blue Origin.
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The Ursids this weekend are a winter solstice light show.
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Jared Isaacman, the billionaire nominated twice to lead the agency, may draw some lessons from the tenure of another NASA leader in the 1990s.
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The moon will be about one-third full as one of the year’s last meteor showers becomes most visible.
