421–440 of 1,385 results
Doubles map east

Explore the Night with Bob King

Dazzling Double Stars for Compromised Skies

For many, smoke from wildfires has transformed summer nights, blotting out stars and familiar deep-sky sights. But through it all double stars keep on shining.

Cratered Floor, Fratcured Rough

Astronomy in Space with David Dickinson

NASA's Perseverance to Collect First Sample from Mars

Perseverance will soon collect the first of many samples from the Martian surface in a quest to answer whether the planet once hosted life.

Cen A jets

The Black Hole Files with Camille Carlisle

Event Horizon Telescope Reveals Curious Jet Structure from Black Hole

Observations of the nearest radio galaxy, Centaurus A, provide the highest-resolution look at the long jets shooting from the galaxy’s supermassive black hole.

Peculiar galaxies

Astronomy in Space with David Dickinson

NASA's Hubble Space Telescope Is Back in Action

After a tense month, the Hubble Space Telescope resumed operations this past weekend.

Hot vs. Cold

Imaging Foundations with Richard Wright

Beating the Heat in Astrophotography

Keeping your camera cool is an essential element to obtaining good clean images in astrophotography.

a view of a brown landscape with part of a machine in the forefront

Cosmic Relief with David Grinspoon

Eavesdropping on Mars

The most compelling audio the Perseverance rover will record might well be the sounds it generates itself.

NGC 5453 globular cluster

Explore the Night with Bob King

In Heaven with M7, a Portal Into the Deep

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.

Astronomy in Space with David Dickinson

Hubble Trouble: NASA Works to Fix Space Telescope (Updated July 14th)

NASA Engineers are working to reboot the Hubble Space Telescope, after an unexpected anomaly.

Raised Ridges

Astronomy in Space with David Dickinson

Mars Helicopter Scouts Risky Terrain for Perseverance Rover

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

EnVision

Astronomy in Space with David Dickinson

What Will ESA's EnVision Learn at Venus?

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'?

blue noctilucent clouds hover over trees and a pink sunset

Explore the Night with Bob King

Noctilucent Cloud Show, a Mercurial Nova, and More

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.

The Black Hole Files with Camille Carlisle

Gravitational Waves Reveal Black Hole–Neutron Star Mergers

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

handkerchief flats

Imaging Foundations with Richard Wright

Demystifying Flat-Frame Calibration

Many astrophotographers skip flat fields because they seem complicated. But the flats can greatly improve your images — here's how to do them.

M56 globular

Explore the Night with Bob King

Summer Nights Offer Splendid Sights in Lyra

Lyra, the Lyre, offers a wonderful assortment of double stars and deep-sky objects to keep you up at night. Break out your binoculars and telescope and join me for a summertime ramble.

Zhurong selfie

Astronomy in Space with David Dickinson

China’s Zhurong Rover Snaps Selfie on Mars

China's Zhurong rover gets to work exploring Mars, with a new panorama of its landing site.

Red nova

Explore the Night with Bob King

Bright Nova in Hercules on a Roller Coaster Ride

A new bright nova discovered in Hercules at 8th magnitude briefly rose to naked-eye visibility. It's currently easily visible in a pair of binoculars.

Explore the Night with Bob King

Chasing the Sun at 39,000 Feet

Sky & Telescope's annular-eclipse flight chased down the "ring of fire" eclipse in the skies above Canada for breathtaking views.

Annular eclipse

Explore the Night with Bob King

A Sunrise Annular Solar Eclipse

Even if you're not in the path of annularity during the June 10th solar eclipse, get ready for a sunrise spectacle.

Venus

Astronomy in Space with David Dickinson

We're Heading to Venus! NASA Selects Discovery-class Missions

After a hiatus of several decades, NASA is about to return to Venus in a big way.

Explore the Night with Bob King

Dawn Delight: Catch the Total Lunar Eclipse on May 26, 2021

On May 26th the Moon will be in total eclipse for the first time in nearly two and a half years. While timing favors western North America, a partial eclipse will be visible across much of the U.S. and Canada at dawn.