Staff at NOAA say verbal orders, travel bans and self-censorship are reshaping the agency from within

The black hole Ansky has some of the brightest and longest flares ever seen

The X-37B returned to Earth this month, but details of its time in space remain hazy, to say the least.

Their interactions are rarely studied, but it turns out whales and dolphins actually get along swimmingly – even if one side’s keener than the other

Who doesn’t love a good mystery? There’s nothing better than uncovering the clues to crack a case. A missing button here, a crooked rug there, and does that painting look fake to you? But when it comes to solving the mysteries of the Universe, things are even more complicated. We may now have the James Webb Space Telescope at our disposal, but the more it shows us, the deeper these mysteries become. It’s shown us a surprising number of gigantic galaxies lurking in the oldest corners of the Universe. The trouble is, to reach the sizes we’re seeing, they must have formed earlier than we think is possible. As far as our understanding of cosmology is concerned, finding these galaxies is like finding someone murdered inside a locked room. Luckily, there's a team of astro-sleuths on the case, and they’re using all their deductive skills to explain why we’re finding so many of these very big, very old galaxies – and if they’re really as weird as they appear to be.

Meet the scientist who’s testing cutting-edge ageing research on his own body

Psychologists are now finding that mental flexibility, not pushing through at all costs, is the real key to perseverance

This acid is almost impossible to remove from the environment once it’s there

This alternative could protect forests and reduce greenhouse gases, from products small suburban breweries

As concerns grow over the sustainability of healthcare materials and the long-term use of fluoride, a surprising new alternative treatment for enamel decay is taking shape in the lab