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A bright green laser light shines from a darkened dome of an observatory into a starry night sky

These 2 European telescopes use lasers to track potentially dangerous space junk (video)

By Keith Cooper published

The laser system provides real-time positional data on the huge cloud of space debris above our heads in low Earth orbit.

Satellites
a triple-core rocket blasts off under a sunny, partly cloudy blue sky. smoke expands below next to an obscured launch tower, near a long white hanger with SPACEX written on the side. To the left, a bird flies away.

Rocket launch today: Is there a rocket launch and what time?

By Josh Dinner, Tariq Malik last updated

Follow Space.com's rocket launch blog for the latest on when the next rocket launch will be and how to follow it live.

Launches & Spacecraft
A glowing green light is seen in the center of a starry image from space but also in a white cutout box on the left part of the image

Interstellar comet 3I ATLAS glows green during lunar eclipse | Space photo of the day for Sept. 15, 2025

By Kenna Hughes-Castleberry published

During September's total lunar eclipse, astronomers captured rare images of interstellar comet 3I/ATLAS glowing green, suggesting more about its chemistry.

Stargazing

15 years on, 'Halo: Reach' continues to be the golden standard of video game prequels

By Fran Ruiz published

Bungie's Halo swan song remains a fan-favorite installment, and its appeal after all these years is more than just nostalgia.

Space Games

Where will the partial solar eclipse be visible on Sept. 21?

By Daisy Dobrijevic published

The 'equinox eclipse' will bring up to 86% coverage across New Zealand, Antarctica and parts of the South Pacific.

Solar Eclipses
a white and black rocket lifts off on a bright plume with an orange glow, set against a blue sky with wispy white clouds.

SpaceX launches Northrop Grumman's biggest-ever cargo spacecraft on its 1st mission to the ISS (video)

By Mike Wall last updated

SpaceX launched Northrop Grumman's new "Cygnus XL" cargo ship on its debut mission to the International Space Station on Sunday (Sept. 14).

Launches & Spacecraft
two satellite photos of a lake; on the left, much of the surface is covered in ice. on the right, the ice has frozen to reveal blue water and a previously unseen island

NASA satellites spot brand-new island in Alaska formed by melting glacier (photos)

By Samantha Mathewson published

Satellite images reveal a new island in Alaska's Alsek Lake, formed as retreating glaciers reshape the landscape.

Climate Change
A photo of the sun captured during a partial solar eclipse. The silhouette of the moon covers the majority of the sun, transforming it into a crescent, or sickle shape.

1 week to go until the moon takes a ‘bite’ out of the sun during partial solar eclipse on Sept. 21

By Anthony Wood published

The moon will roll across the face of the sun on Sept. 21 for lucky viewers in the southern hemisphere.

Solar Eclipses
An illustration of binary black holes ringing spacetime with gravitational waves

LIGO Legacy: 10 incredible gravitational wave breakthroughs to celebrate observatory's landmark 2015 find

By Robert Lea published

The first-ever detection of gravitational waves was made 10 years ago today (Sept. 14). In celebration, Space.com takes you through the most significant gravitational wave discoveries to date.

Astronomy
A SpaceX Falcon 9 rocket carries 24 of the company's Starlink internet satellites to orbit from California's Vandenberg Space Force Base on Sept. 13, 2025.

SpaceX launches 300th Starlink satellite-internet mission (video)

By Mike Wall published

SpaceX launched 24 Starlink internet satellites from Vandenberg Space Force Base in California today (Sept. 13). It was the 300th Starlink mission to date, according to the company.

Launches & Spacecraft
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