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.

Holding the Singapore sun

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

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.

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...

What’s this rainbow patch in the sky?

One EarthSky reader captured a photo of a rainbow patch hanging below a cloud, looking almost like a sheet of rain. What was it?

Saturn’s cold blue hemisphere

In recent years, earthly observers couldn't see Saturn's southern hemisphere. It was largely hidden behind Saturn's rings. In 2021, Saturn's rings and north pole reached their maximum tilt toward Earth, and now the southern hemisphere is coming back into view ... colored blue.

ISS passing Polaris, seen from Canada

What a catch! This EarthSky community member caught the International Space Station (ISS) slicing across the night sky on May 17, 2021, passing Polaris, the North Star.

Photos: Young moon, Mercury, Venus, Mars

The brightest planet Venus has now returned to the evening sky, joining Mercury. It'll surprise you by appearing so bright, low in the western twilight. The moon swept past Venus Wednesday and Mercury Thursday ... this weekend, Mars!

See a nova or “new” star. V1405 Cas is now visible to the eye

A nova that first brightened in March of 2021 has now flared bright enough to be seen without binoculars or a telescope.

Cool sun image

EarthSky readers submit wonderful photos to us every day. This week we received this interesting composite image of the sun, our nearest star.