Low-Earth orbit is more crowded—and fragile—than it looks. Satellites constantly weave past each other, burning fuel and ...

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At the start of the year, Earth will quietly reach a milestone in its orbit around the sun. Known as perihelion, this is the moment when our planet is closer to the sun than at any other point in the ...

A decade after their dramatic Sun Bowl showdown in 2014, Arizona State and Duke are set to meet again in El Paso for a postseason showdown. What looked like an intriguing matchup even a month ago has ...

Even most rocket scientists would rather avoid hard math when they don't have to do it. So when it comes to figuring out orbits in complex three-body systems, like those in cis-lunar space, which is ...

TEHRAN, Iran — Russia on Sunday sent three Iranian communications satellites into orbit, the second such launch since July, Iranian state television reported. The report said that a Russian rocket ...

Japan’s H3 rocket lifted off for its seventh mission on Sunday, but an engine failure foiled its attempt to insert a navigation satellite in geostationary orbit. Japan Aerospace Exploration Agency ...

Warning: This graphic requires JavaScript. Please enable JavaScript for the best experience. The American patrol satellite had the targets in its sights: two recently ...

Another day, another ambitious company emerges to harness the power of the Sun from Earth's orbit. Okay, it's not quite that common an occurrence, but there are indeed a number of firms giving this a ...

At the end of November, NASA’s next great telescope — the Nancy Grace Roman Space Telescope — officially finished construction. Teams at NASA’s Goddard Space Flight Center in Maryland joined the inner ...

Alex Knapp is a Forbes senior editor covering healthcare and science. Over the past decade, solar power has become the cheapest way to produce electricity. But its biggest challenge is that sometimes ...