51¶¯Âþ

space-time

Space

New Horizons images enable first test of interstellar navigation

By looking at the shifting of stars in photos from the New Horizons probe, astronomers have calculated its position in the galaxy – a technique that could be useful for interstellar missions

51¶¯Âþ

Physics

Where does time actually come from?

Comment

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

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Vera C. Rubin Observatory

Video

Look inside the revolutionary Vera C. Rubin Observatory

Video

Trees against starry sky

Space

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

Features

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¶¯Âþ recommends a new space show at the Hayden Planetarium

Culture

Rubin Observatory in March 2024...***..Observatorio Rubin en marzo de 2024.

Space

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

Comment

Astronaut Scott Kelly posted this photo of an aurora taken from the International Space Station to Twitter on August 15, 2015

Physics

The radical idea that space-time remembers could upend cosmology

Features

Physics

Microwaves seem to experience imaginary time – and now we know how

51¶¯Âþ

2M7PPCR HMS EREBUS trapped in the ice in 1846 during the third Franklin expedition to find a Northwest Passage .Painting byFrancois Musin about 1850

Physics

Fabulous time travel novel is part-thriller and part-romance

In Kaliane Bradley's The Ministry of Time, a young woman must help a naval commander snatched from death in 1847 adapt to the 21st century. Time travel thriller meets romance in this excellent novel

Culture

Space

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

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Space

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

Culture

Space

Why it's taking a century to pin down the speed of the universe

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Comment

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

Culture

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