Astronomers have used ESO's New Technology Telescope and the NASA/ESA Hubble Space Telescope to explore more than 100 planetary nebulae in the central bulge of our galaxy. They have found that butterfly-shaped members of this cosmic family tend to be mysteriously aligned — a surprising result given their different histories and varied properties.

Cassini spacecraft images show the development of the largest storm seen on the planet since 1990. On Saturn, not only are storms much bigger than on Earth, they're far more violent, with vertical winds of more than 300 miles per hour.

"For decades people have known that the solar cycle depends on the poleward flow or material, changing the magnetic fields from one cycle to the next. We mapped out what we believed to be the flow pattern in the 1990s, but the results didn't quite make sense." - Philip Scherrer

A new Dartmouth study links an abrupt global change to a colder, dryer climate 12,900 years ago to the impact of an asteroid or comet in Quebec

Gardiner’s frogs from the Seychelles islands, one of the smallest frogs in the world, do not possess a middle ear with an eardrum yet can croak themselves, and hear other frogs.

Researchers have developed complex human brain tissue in a 3-D culture system that allows pluripotent stem cells to develop into cerebral organoids - or "mini brains" - that consist of several discrete brain regions.

Hidden for all of human history, a 460 mile long canyon has been discovered below Greenland's ice sheet.

The Chaco Culture National Historical Park in New Mexico has just been named the International Dark-Sky Association's newest Dark Sky Park.

Birds' formal description printed in special volume of Handbook of the Birds of the World. Not since 1871 have so many bird species been introduced under a single cover.

Slowly but surely, the Rim Fire in California is being contained. Here's a satellite view from August 28.