1381–1400 of 6,730 results
Moon Saturn and Mercury on 3-4 Jan 2022

Celestial News & Events

This Week's Sky at a Glance, December 31 – January 8

As the calendar flips to a new year, the night sky brims with bright stars, planets, and a potential meteor shower to help you celebrate.

Geminid fireball over Tucson

Night Sky Sights

The Best Meteor Showers of 2022

Sky & Telescope predicts that the year’s best meteor shower will be the Quadrantids, which peak in the very first days of 2022. But the normally weak Tau Herculids (late May) and Leonids (November) might deliver dramatic outbursts.

Psyche

Space Missions

Spaceflight 2022: Missions to Watch in the Coming Year

The New Year will see missions returning to the Moon and much more.

Comet Leonard on Dec. 24, 2021

Celestial News & Events

Comet Leonard: A Gift at Christmastime

Multiple bright outbursts have transformed Comet Leonard into a stunning photographic object that’s also visible without optical aid from southern locations. More disruptions are likely in store as it approaches perihelion.

Liftoff!

Space Missions

The James Webb Space Telescope Is Headed to Space

Over a generation in the making, the James Webb Space Telescope is finally headed for space.

Pleiades

Night Sky Sights

Getting Started with Your New Telescope

How to start right using a new telescope — a guide to what you need to know, how to set it up, and things you can start finding with it in tonight's sky.

Crescent Moon, Mars and Antares at dawn, Dec. 31, 2021

Celestial News & Events

This Week's Sky at a Glance, December 24 – January 1

Crescent Venus, ever thinner and lower in twilight, dives toward the Sun. Jupiter and Saturn bide their time. The bright winter constellations fill the east after dark. Mars and Antares pair up at dawn.

Venus full circle

Celestial News & Events

Venus Farewell, Moonless Skies for the Quadrantids

Venus presents a stunning crescent at dusk before switching over to the morning sky early next month. After dodging the Moon for the Geminids, it's dark skies all around for the Quadrantid meteor shower.

Ryugu sample

Solar System

Samples from Asteroid Ryugu Are Most Primitive Material We've Found

The material that the Hayabusa 2 spacecraft returned from asteroid Ryugu is the most pristine sample we've ever gotten our hands on.

Jupiter and Saturn in evening sky, Christmas Eve 2021

Celestial News & Events

This Week's Sky at a Glance, December 17 – 25

Dramatic Venus is becoming a dramatically thinner, larger crescent the southwestern twilight. A few people can even resolve the crescent naked-eye. Saturn and Jupiter stay lined up behind it. And the bright winter constellations officially come into their own with the turning of the solstice.

JWST

Professional Telescopes

What Will the James Webb Space Telescope Uncover?

The soon-to-be-launched James Webb Space Telescope should shed light on exoplanet atmospheres and peer back to the universe's first stars.

Artist's concept of probe above Alfven surface

Solar System

“Humanity Has ‘Touched’ the Sun”

On its eighth close pass, NASA’s record-breaking Parker Solar Probe entered our star’s atmosphere and “touched” the surface of the Sun.

Compact object emits jets and ring of light in artist's concept of a supernova dubbed

Black Holes

Stellar Remnant at the Core of Mysterious Flash Dubbed "The Cow"

Astronomers have identified the origin of a mysterious flash that occurred three years ago.

Concept of the universe's expansion

Cosmology

No Release for the Hubble Tension

New data and analysis show that a long-standing discrepancy in the measurement of the current expansion rate of the universe is real — even as the reason for it remains a mystery.

Celestial News & Events

Precious Hours with the Geminids

At first glance, the annual Geminid meteor shower appears to be on a collision course with a bright Moon. But a closer look reveals a happy window of dark skies.

Moon padding Pleiades and Aldebaran, Dec. 16-17, 2021

Celestial News & Events

This Week's Sky at a Glance, December 10 – 18

Comet Leonard switches from low in the dawn to low in the dusk this week; you'll need those binocs. The Venus-Saturn-Jupiter line slides westward. And the high full moon of December rides across the sky in Taurus, at the top of the ecliptic.

a solar eclipse above a cloud bank with a dark blue sky turning orange towards the horizon

People, Places, and Events

Total Solar Eclipse: Reports from Antarctica

Sky & Telescope and friends report on the total solar eclipse that occurred over Antarctica earlier this week.

IXPE Launch

Space Missions

NASA Launches New X-ray Explorer

The Imaging X-ray Polarimetry Explorer will shed new light on energetic and enigmatic sources such as magnetars, supernovae, and black holes.

Artist's concept of giant planet in a far-out orbit

Exoplanets

Giant Planet Imaged Around Massive Stars

Astronomers have imaged a giant planet around a massive pair of stars, a discovery that challenges our notions of how planets form.

Leo I dwarf galaxy

Black Holes

Tiny Galaxy’s Giant Black Hole Throws Astronomers for a Loop

A satellite galaxy dwarfed by the Milky Way has a black hole nearly as massive as the one at the center of our galaxy.