Dusty Skies
An electrically charged dust storm roars toward a small Mars rover in this fanciful illustration. Giant dust storms sometimes do…
Dry Sea
The Sea of Crises is one of the most noticeable features on the lunar surface. It’s a small, dark circular…
Shorter Days
Growth rings in fossilized clams known as rudists, such as this one, record the changing length of Earth’s day due…
Galaxies Everywhere
Hundreds of galaxies populate this view of the Hercules galaxy cluster, which is about 500 million light-years from Earth. The…
Bright Rings
Saturn’s rings shine brightly in this 2019 view from Hubble Space Telescope. The rings are still at a good angle…
Ready for Mars
Engineers prepare Hope, the first Mars mission from the United Arab Emirates, for launch. The orbiter will study Martian weather…
First Visit
Space shuttle Atlantis approaches Russia's Mir space station during the first shuttle-Mir docking mission, in June 1995. Atlantis dropped off…
Summer Highlights
Scorpius and Sagittarius are two of the highlights of summer's evening skies. This view is a couple of hours after…
Deadly Hourglass
This cosmic hourglass is the remnant of Nova Vulpecula, a brilliant “new” star that appeared in Vulpecula, the fox, in…
Star Factory
An artist’s concept depicts a massive young galaxy that is giving birth to millions of stars. Astronomers have recently studied…