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New mapping of Saturn’s upper atmosphere reveals why its so hot

The upper layers in the atmospheres of gas giants -- Saturn, Jupiter, Uranus and Neptune -- are hot, just like Earth's.

Sulfur ‘spices’ alien atmospheres

They say variety is the spice of life, and now new discoveries from Johns Hopkins researchers suggest that a certain elemental 'variety'--sulfur--is indeed a 'spice' that can perhaps point to signs of life.

The Milky Way’s satellite galaxies help reveal link between dark matter halos and galaxy formation

Just as the sun has planets and the planets have moons, our galaxy has satellite galaxies, and some of those might have smaller satellite...

Mysteries of Uranus’ oddities explained by Japanese astronomers

The ice giant Uranus' unusual attributes have long puzzled scientists. All of the planets in our Solar System revolve around the Sun in the same...

Creating a crater to constrain the age of an asteroid’s surface

An important science goal for the Hayabusa2 mission is to map the history of asteroid Ryugu.

30 Years of Hubble: Discoveries Continue to Wow Scientists, Public

Peering into the darkness to see what we could not previously see, the Hubble Space Telescope has been delighting scientists and the general public for 30 years with revealing details and images of galaxies, celestial phenomena, and planets within and beyond our solar system.

Hubble finds best evidence for elusive mid-size black hole

New data from the NASA/ESA Hubble Space Telescope have provided the strongest evidence yet for mid-sized black holes in the Universe.

A Martian mash up: Meteorites tell story of Mars’ water history

In Jessica Barnes' palm is an ancient, coin-sized mosaic of glass, minerals and rocks as thick as a strand of wool fiber.

Modern science reveals ancient secret in Japanese literature

Nearly a millennium and a half ago, red light streaked the night sky over Japan.