Cosmic MysteriesA Sharper Spectrum of K2-18 b Reopens the Ocean World Debate
Fresh transmission data tightens constraints on methane and carbon dioxide in the atmosphere of the sub-Neptune 124 light-years away.

Breaking · Oct 12, 2026
From super-greenhouse gases to an artificial magnetosphere, here is the actual engineering sequence scientists have proposed to make Mars habitable — and how long each step would take.
Fresh off the wire
Cosmic MysteriesFresh transmission data tightens constraints on methane and carbon dioxide in the atmosphere of the sub-Neptune 124 light-years away.
MissionsNew near-infrared mosaics expose hundreds of previously unseen protostars and jets carving through the walls of the Carina Nebula.
Black Holes & SingularitiesSeveral galaxies at redshift 10+ host black holes far too heavy for their stars, supporting the theory that some formed directly from collapsing gas clouds.

Astronomy Picture of the Day
Towering columns of cool interstellar gas and dust in the Eagle Nebula glow in this near-infrared view. New stars forming inside the pillars appear as bright red orbs at their tips.
NASA's APOD ArchiveNews Wire
Fresh imagery from NASA and live launch data from agencies worldwide, pulled live on every visit.
Gallery
Key frames from our long-form stories — each one opens the full article.

How to Turn Mars Into Earth: The Step-by-Step Blueprint

Dyson Spheres: Have We Already Spotted an Alien Megastructure?

The Biggest Black Holes in the Universe, Ranked

The Fermi Paradox: Where Is Everybody?

Project Starshot: Sailing to Alpha Centauri at 20% Light Speed

What’s Inside a Black Hole? The Singularity Problem

EHT Films a Hot Spot Orbiting Sagittarius A*

Fast Radio Burst Repeats Every 16 Days, Stumping Astronomers

A Sharper Spectrum of K2-18 b Reopens the Ocean World Debate

JWST Reveals Hidden Star Nurseries in Carina’s Cosmic Cliffs

JWST Spots "Naked" Black Hole Seeds That Skipped Stellar Birth

Are Europa’s Water Plumes Real? Clipper Is Built to Find Out

Ship-to-Ship Refueling: the Key to the Moon and Mars