Scientists released the OSIRIS Image Viewer to make the amazing images of comet 67P – acquired by the Rosetta spacecraft – easily accessible on the internet.

Intense UV radiation from red dwarf stars was thought to make potentially habitable exoplanets unable to support life. But a new study of the 4 nearest rocky worlds suggests otherwise.

In 2013, in a big success story, a Mars rover and orbiter made a near-simultaneous observation of methane in Mars’ atmosphere. Now a newer mission orbiting Mars – ESA’s Trace Gas Orbiter – has failed to detect methane. Why?

The giant exoplanet – 13 times more massive than Jupiter – is the first yet found that orbits a binary star system in which 1 of the 2 stars is dead.

Rain takes different forms on the planets and moons of our solar system. But it also “rains” on the sun, as electrified gas drips from giant magnetic loops in the sun’s outer atmosphere. Read about the sun’s coronal rain.

New research suggests that volcanoes of molten iron might have erupted onto the surface of metallic asteroids.

On Wednesday, in coordinated press conferences across the globe, researchers unveiled a history-making image – the 1st ever – of the “shadow” of a supermassive black hole.

Israel’s Beresheet spacecraft will attempt the country’s 1st-ever and 1st commercial landing on the moon on Thursday, April 11. The landing is expected between 19:00 and 20:00 UTC (2 to 3 p.m. CDT).

For the first time, an in-situ measurement of methane on Mars – made by NASA’s Curiosity rover – has been independently confirmed from orbit, by ESA’s Mars Express. Could it be a clue to Mars life?

The star is a white dwarf, a cool, dead, dense star like our sun some 6 billion years from now. The planet fragment – made of heavy metals – survived a system-wide cataclysm that followed the star’s death.

Mars is a cold, dry desert, but a new study provides tantalizing evidence for liquid water deep below its surface. If it exists, this Mars groundwater might cause the weird dark streaks in Martian craters and canyons.

These images from ESA’s ExoMars orbiter show Mars in all of its diverse geological wonder. Also, if you look carefully, you can spy NASA’s newest Mars mission, the InSight lander!

Dark matter theory – the idea that a huge fraction of our universe exists in a form we can’t see – is a cornerstone of modern cosmology. Ironically, galaxies lacking dark matter might help confirm the theory.