May lunar eclipse and a colorful cosmic cloud

Absolutely astounding! Wonderful photos of 2021's first eclipse - the May lunar eclipse - near the Rho Ophiuchi Cloud Complex.

SpaceX CRS-22 mission Thursday will carry tiny crewmates

CRS-22 - SpaceX’s 22nd cargo launch for NASA - will send bobtail squid and tardigrades to ISS this week. The launch is scheduled for June 3. How to watch, here.

Holding the Singapore sun

So creative and original! This EarthSky community member captured some Singapore sun rays on May 30, 2021.

Active seafloor volcanoes on Jupiter’s moon Europa?

New research suggests active seafloor volcanoes on Jupiter's moon Europa. Are they linked to life? The planned Europa Clipper mission might provide answers.

New water clues on Uranus and Neptune

The ice giant planets Uranus and Neptune are unlike any others in our solar system. New research from the U.S. and South Korea suggests that the deep interior water layers of the ice giant planets may be rich in magnesium.

Lucky strike: Space debris smacked ISS robotic arm

Space officials called it a "lucky strike" when space debris smacked into the skinny robotic arm on the space station, creating a hole now seen in images.

Curiosity sees rare clouds on Mars

Clouds on Mars are infrequent, but the Curiosity rover has captured some. Scientists are analyzing the images to learn about these elusive atmospheric delights.

Use the moon to find Jupiter and Saturn in late May and early June

In late May and early June 2021, use the moon to find Jupiter and Saturn.

Photos! The close Mercury-Venus conjunction

Closest Mercury-Venus conjunction until 2033 It hasn’t been easy, but members of the EarthSky community have caught photos of the...

Why is the sun’s atmosphere hotter than its surface?

The sun's atmosphere, or corona - the wispy part we see during solar eclipses - is hundreds of times hotter than the sun's visible surface, or photosphere. Why?