Space News & Blog Articles

NASA's Juno flew by Jupiter's Ganymede, the biggest moon in the solar system, on June 7, 2021.

M7 in Scorpius is one of the brightest, most beautiful open clusters in the sky. It's also "home" to a half-dozen other delectable deep-sky sights.

The Ingenuity Mars helicopter has proven itself a valuable asset to Perseverance, scouting out terrain that the rover can't cross.

Astronomers uncovered four new Earth-mass rogue planet candidates by searching for microlensing events observed with Kepler.

Here you'll find accompanying finder charts/images for Steve Gottlieb's article in the October 2021 issue of Sky & Telescope.

Use these finders to locate the Arp targets discussed in the Going Deep column in the October 2021 issue.

ESA's EnVision mission to Venus adds to the growing number of spacecraft investigating our sister planet. How will they work together to understand our sister planet'?

Bright Venus and tiny Mars come to conjunction low in the western twilight, as the crescent Moon stands watch. On the other side of the sky, Saturn and Jupiter rise after dark. And before moonlight comes back, delve the deep sky in Scorpius and Sagittarius.

An amateur astronomer has discovered a new moon of Jupiter. While it hasn't received official designation yet, it would bring the tally of Jovian satellites to 80.

These websites and apps can help you forecast the astronomical observing conditions for your next night out.

New measurements from NASA’s Curiosity rover show that methane concentrations near the Martian surface vary on a daily cycle. The finding could help reconcile conflicting data.

Astronomers find more bright spots underneath Mars's south polar cap, but could they really be subterranean lakes?

Bright Venus and faint little Mars close in on each other low in the western twilight. Scorpius, laden with interesting stars and deep-sky targets, is highest in the south right after dark. Sagittarius, even richer, follows behind. Saturn and Jupiter rise in late evening.

When amateur astronomers and their families plan a vacation, they are increasingly likely to plan it around a star party. The big amateur gatherings have been growing in recent years, and new ones devoted especially to dark-sky observing are sprouting all over. True deep-sky star parties — as opposed to the more traditional, general-interest conventions […]

Summer only lasts so long. Like everything, it's transient. That will be our theme as we explore wispy noctilucent clouds, a nova that can't sit still, and a supernova in NGC 5427 in Virgo.

As many states roll back COVID restrictions, stargazers across the continent are excited to meet up with old and new friends at their favorite observing sites.

True darkness is fleeting in July, especially at higher latitudes. So make the most of the darkness you have, by downloading our narrated Sky Tour podcast to "what's up" in the night sky.

Astronomers have discovered a white dwarf only slightly bigger than the Moon, making it the smallest — as well as the most massive — ever found. It might even be on the edge of collapse.

Two new detections give astrophysicists a novel look at how stellar remnants pair up.

A new analysis of old data suggests that some of our sister planet’s unique surface formations are due to a “squishy” crust and an active interior.

A study of 36 dwarf galaxies within a volume of space spanning 13 million light-years show they all have remarkably similar histories despite the vast distances between them.