A Tiny Quasi-Moon is Following Earth Around the Sun

The object, the latest “quasi-moon” detected by astronomers, could be with us for almost another 60 years.

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Quakes on Mars Reveal New Features of the Planet’s Interior

Using data from NASA’s retired InSight lander, two separate teams of researchers found evidence of a sluggish Martian mantle and a solid inner core.

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Northern Lights Could Put on a Show for Large Sections of U.S.

A dazzling display in the nighttime sky might be seen much farther south than usual, including parts of Iowa, Oregon and Pennsylvania, by Tuesday, forecasters said.

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Space Rock That Punched Through Roof Almost Struck Resident

Fragments of a meteorite that fell to Earth as part of a mysterious daytime fireball in late June missed striking a man near Atlanta, a researcher has found.

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SpaceX, NASA Launch Astronauts to Space Station as Clouds Stay Just Far Enough Away

After a scrubbed launch on Thursday, four astronauts lifted off from Florida and will dock at the International Space Station on Saturday.

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When Earth’s Surface Shifts, a New Satellite Will See It

NISAR, built jointly by NASA and India’s space agency and launched on Wednesday, will use radar to monitor tiny changes across our planet’s land and icy regions.

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NISAR — a NASA-India Collaboration — Will Study Earth With Radar. Here’s How to Watch the Launch.

A new Earth-observing satellite, built by NASA and India’s space agency, will be sent into orbit on Wednesday.

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Earth Is Spinning Faster, Making Some Summer Days Shorter

The planet’s rotation fluctuates as it travels around the sun, and measurements suggest we’re losing more than a millisecond during the long days of summer.

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SpaceX Puts Humans in Orbit Over Earth’s Poles for the First Time

Chun Wang, a Chinese-born crypto entrepreneur, paid an undisclosed amount for the mission. Some satellites are already in polar orbit, and researchers called it a routine flight.

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Photos: Partial Solar Eclipse Captivates Much of the Northern Hemisphere

The moon slipped between the Earth and the sun on Saturday, casting a shadow on our planet in parts of the United States, Canada, the Caribbean, Europe, Russia and Africa.

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