Six planets are set to align on Saturday, creating a planetary parade that will be visible to sky-gazers across the globe.

Despite the dramatic name, these alignments aren’t exceptionally rare. The last six-planet parade occurred in January 2025, ...

The Planetary Health Check is a key monitor of earth's vital signs—and will guide action for a more sustainable world.

A recent SpaceNews opinion article argued that it is time to “take astronomy off Earth.” The suggestion is straightforward: If satellite constellations and commercial space activity threaten ...

In a surprising twist to our understanding of exoplanetary systems, astronomers have uncovered three Earth-sized planets orbiting a binary star system known as TOI-2267. This rare configuration, ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how planets form. Across our galaxy, astronomers routinely observe a ...

Even when Earth was locked in its most extreme deep freeze, the planet’s climate may not have been as silent and still as ...

"We expected to see this effect, but we were still surprised by just how efficient these stars seem to be at engulfing their close planets." When you purchase through links on our site, we may earn an ...

A sampling of aging Sun-like stars demonstrates that they likely eat their closest planets. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Before Earth, there was “proto Earth,” a primitive hunk of rock that formed four and a half billion years ago. It was drastically different to the Earth we know today, heaving with lava and rock all ...

Space debris—the thousands of pieces of human-made objects abandoned in Earth's orbit—poses a risk to humans when it falls to the ground. To locate possible crash sites, a Johns Hopkins University ...

Falling space junk is becoming a real-world hazard, and scientists have found a clever new way to track it using instruments already listening to the Earth itself. By tapping into networks of ...