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A four-legged orbiter sits on the sand, with a dish and a cloth over its parts.

50 years ago, NASA sent 2 spacecraft to search for life on Mars – the Viking missions' findings are still discussed today

By Joel S. Levine published

Viking consisted of two twin orbiters and landers, with experimental chambers in the landers to conduct three biology experiments.

Launches & Spacecraft
A map of the night sky, where just over the roof of a red farmhouse is an orange circle enclosing a yellow labeled dot for the moon above a white dot labeled Venus which is above a smaller dot labeled Regulus

The moon and Venus visit the 'Heart of the Lion' this week. Here's how to see it

By Joe Rao published

A striking sight to the unaided eye; even more so with binoculars.

Stargazing
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
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