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Most Mars dust comes from one place

“Mars wouldn’t be nearly this dusty if it wasn’t for this one enormous deposit that is gradually eroding over time and polluting the planet, essentially.”

Subsurface lake discovered on Mars?

ESA’s Mars Express spacecraft has discovered the 1st evidence for a subsurface liquid lake on Mars. If it exists, this lake is likely salty and cold, but possibly habitable for some microorganisms.

The case for a habitable moon

Not now, but billions of years ago, microbes might have thrived in water pools on the moon until its surface became dead and dry.

Young star caught eating its planet

It had been theorized that some young stars might devour their planets. Now astronomers have the 1st solid evidence – from the Chandra X-ray Observatory – of just such an event caught in the act.

The Milky Way’s long-lost sibling

Two billion years ago, the Andromeda galaxy – closest large spiral galaxy to our Milky Way – might have eaten another large galaxy.

Wow! New volcano on Jupiter’s moon Io

Io is small, but it’s the most volcanically active world in our solar system. It has hundreds of active volcanoes. Now the Juno spacecraft has found one more.

These spacecraft are studying Mars dust

Raging, planet-wide dust storms – like the one going on now – happen only every 6 to 8 years on Mars. Here’s how NASA spacecraft are studying it, plus a cool before-and-after video! 

Apollo and the moon-landing hoax

Why do people persist in denying that human beings landed on the moon?

Today in science: 1st footsteps on moon

Today is the 49th anniversary of humanity’s historic first steps on the moon. The story in pictures, here.

Is the moon toxic to humans?

When the Apollo astronauts returned from the moon, the dust that clung to their spacesuits made their throats sore and their eyes water. Lunar dust is made of sharp, abrasive particles, but how toxic is it for humans?