Geological evidence, including an Ordovician-era increase in earthquakes, tsunamis, meteorites, and crater formation, suggests a significant celestial event approximately 466 million years ago. A ...

In observations conducted between April 5 and April 10, 2017, the team looked at the relativistic jet produced by OJ 287, a ...

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Two million years ago, an encounter with a cold cloud of gas and dust could have caused our planet's "protective giant bubble" to draw back, potentially cooling our planet, new research claims. When ...

A growing number of researchers in the field are using their expertise to fight the climate crisis. By Katrina Miller and Delger Erdenesanaa On the morning of Jan. 18, 2003, Penny Sackett, then ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

Astronomers have discovered an Earth-size planet that is showered with so much radiation, its atmosphere eroded away long ago, leaving it bare. Life as we know it can't exist on this blistering world, ...

Simulations and satellite data reveal that Earth's magnetic field is more complex than scientists had thought. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

A look at the most-read space stories of 2025, covering satellite activity, space missions, scientific discoveries, and natural events observed from Earth ...