Weird inside-out planet system may have formed one world at a time

Artist impression of the planetary system around the star LHS 1903 ESA Astronomers have found a…

Gravitational wave signal proves Einstein was right about relativity

Artist’s impression of a black hole collision that produced GW250114 A. Simonnet/Sonoma State University; LIGO-Virgo-KAGRA Collaboration;…

A Brief History of the Universe (and our place in it) review: A new tour of the cosmos paints a wide picture

No tour of the cosmos is complete without a description of black holes MARK GARLICK/SCIENCE PHOTO…

Synchronised volcanic eruptions on Io hint at a spongy interior

A volcanic eruption on Io photographed by the Galileo spacecraft NASA/JPL/DLR Five volcanoes on Jupiter’s moon…

Why Elon Musk has misunderstood the point of Star Trek

“Space travel is the setting but not the heart of the Star Trek franchise” … A…

Why did SpaceX just apply to launch 1 million satellites?

A SpaceX satellite launch at Kennedy Space Center, Florida Geopix/Alamy We’re a month into 2026, yet…

A huge cloud of dark matter may be lurking near our solar system

There might be a big clump of dark matter in our galactic neighbourhood Alamy There seems…

The best map of dark matter has revealed never-before-seen structures

The dark matter distribution observed by the Hubble Space Telescope (left) and by the James Webb…

How to spot the lunar X and V

The lunar X, seen from Tokyo in February 2025 The Yomiuri Shimbun via AP Images/Alamy The…

A Hole in the Sky review: Peter F. Hamilton’s latest is an epic slice of sci-fi – with one flaw

A Hole in the Sky is told through the eyes of 16-year-old Hazel Adam Serba/Alamy A…