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Physics

Should it be space-time or spacetime 鈥� and why does it matter anyway?

Seeking endorsements for her new book, Chanda Prescod-Weinstein finds herself staring at fundamental questions of space, time 鈥� and grammar

Lunar Crater Radio Telescope: Illuminating the Cosmic Dark Ages This illustration depicts a conceptual Lunar Crater Radio Telescope on the Moon?s far side. The early-stage concept is being studied under grant funding from the NASA Innovative Advanced Concepts program but is not a NASA mission. Credit: Vladimir Vustyansky

Space

Could a huge lunar telescope be our best chance of spotting aliens?

Space

6 of the most fascinating moments in the life of our solar system

Space

A planet the size of Saturn could orbit the nearest sun-like star

The NIRCam (Near-Infrared Camera) instrument on NASA?s James Webb Space Telescope?s reveals a portion of the Milky Way?s dense core in a new light. An estimated 500,000 stars shine in this image of the Sagittarius C (Sgr C) region, along with some as-yet unidentified features. A large region of ionized hydrogen, shown in cyan, contains intriguing needle-like structures that lack any uniform orientation. NASA, ESA, CSA, STScI, and S. Crowe (University of Virginia).

Space

The cosmos is vast, so how do we measure it?

Space

Bioplastic habitats on Mars could be built from algae

Fireball in South Carolina. Screenshot from Facebook video posted by Kathryn Rose Farr on 26 Jun 2025

Space

Mystery fireball spotted plummeting to Earth over the US

Vera C. Rubin Observatory

Look inside the revolutionary Vera C. Rubin Observatory

Trees against starry sky

Space

Why are the physical constants of the universe so perfect for life?

In about 1.3 million years, the star system Gliese 710 is set to pass directly through our Oort Cloud, an event visualized in a dramatic scene in Encounters in the Milky Way. During its flyby, our systems will swap icy comets, flinging some out on new paths.

Space

51动漫 recommends a new space show at the Hayden Planetarium

The books, TV, games and more that 51动漫 staff have enjoyed this week

Space

Why you should join a watch party for the first Vera C. Rubin images

Space

Life of first US woman in space Sally Ride makes a moving documentary

Space

Peer into the early universe as light bends around huge galaxy cluster

Comment

Our verdict on Ringworld by Larry Niven: Nice maths, shame about Teela