Latest about Planets
How old is planet Earth?
How old is Earth? Our planet's age is known from a variety of sources, from rocks on our own planet to ones from the moon.
Tiny photosynthetic aliens could be lurking in hidden bubbles in Mars' ice — and could soon be replicated on Earth
A new NASA-led study suggests that photosynthetic microbes could thrive in hidden bubbles of meltwater below patches of ice on Mars. This could be one of the easiest places to search for extraterrestrial life "anywhere in the universe," the team says.
How many moons does Jupiter have?
How many moons does Jupiter have? Scientists have discovered dozens of them, but the answer may be more complicated than it seems.
'Cryptic terrain' and dark dust surrounds Mars' icy south pole, new photos reveal
"Some of these features are surprisingly dark compared with their icy surroundings, earning their nickname of 'cryptic terrain.'"
NASA finds signs of hellish, lava-covered 'exomoon' circling an alien world — and it could meet a 'destructive end'
A new analysis of a peculiar metallic cloud surrounding the exoplanet WASP-49 b provides further evidence that it may have been birthed by a volcanic satellite, which may become the first officially recognized "exomoon."
Jupiter's Great Red Spot is being squeezed, Hubble Telescope finds — and nobody knows why
The Hubble Space Telescope has seen Jupiter's Great Red Spot oscillating in width as it drifts around the planet. Could this be related to its overall shrinking?
32 things on Mars that look like they shouldn't be there
The more scientists study the Red Planet, the more they find unusual objects and patterns scattered across Mars' surface. Here are some of the most baffling.
NASA's exoplanet hunter TESS spots a record-breaking 3-star system
Using NASA's exoplanet-hunting spacecraft, TESS, astronomers and citizen scientists have discovered a record-breaking system of three tightly bound stars that could fit between the sun and Mercury.
