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Articles on Space

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New measurements from Japan’s Subaru telescope have helped researchers study the matter-antimatter asymmetry problem. Javier Zayas Photography/Moment via Getty

Measuring helium in distant galaxies may give physicists insight into why the universe exists

The way particles interacted while the universe was forming seconds after the Big Bang could explain why the universe exists the way it does – a physicist explains matter-antimatter asymmetry.
SETI has been listening for markers that may indicate alien life – but is doing so ethical? Donald Giannati via Unsplash

First contact with aliens could end in colonization and genocide if we don’t learn from history

Three Indigenous studies scholars draw from colonial histories and explain why listening for alien life can have ethical ramifications.
Photos claiming to be UFO evidence are often doctored or otherwise ambiguous. Ray Massey/The Image Bank via Getty Images

Why people tend to believe UFOs are extraterrestrial

While UFO videos might seem compelling, they’re rarely backed up with evidence. A sociologist explains why claims of alien life gain traction through both social and mass media every few years.
A light, cheap space telescope design would make it possible to put many individual units in space at once. Katie Yung, Daniel Apai /University of Arizona and AllThingsSpace /SketchFab

A new, thin-lensed telescope design could far surpass James Webb – goodbye mirrors, hello diffractive lenses

Space telescopes are limited in size due to the difficulties and cost of getting into orbit. By revamping an old optical technology, researchers are working on a lightweight and thin telescope design.
The Titan submersible imploded on a dive to visit the wreck of the Titanic in June 2023. Ocean Gate / Handout/Anadolu Agency via Getty Images

Danger, prestige and authenticity draw thrill-seekers to adventure tourism

Advances in technology have allowed tourists to go to places and do things they couldn’t in the past. But in extreme environments, the consequences of failure are high.
New research shows that the destructive merging of a star and a planet expels huge amounts of gas, as shown in this artist’s impression. K. Miller/R. Hurt (Caltech/IPAC)

Astronomers just saw a star eat a planet – an astrophysicist on the team explains the first-of-its-kind discovery

Stars begin to expand when they run out of fuel and can become thousands of times larger, consuming any planets in the way. For the first time, astronomers have witnessed one such event.

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