181–200 of 5,808 results
SLS Launch

Spacecraft and Space Missions

Lift-off! NASA Launches Artemis 1 Mission to the Moon

NASA’s next-generation Moon rocket has left the launchpad on the first flight of the Artemis program.

Oumuamua painting by Hartmann


Was Interstellar Object `Oumuamua a Chunk of Exo-Pluto?

The interstellar pancake named 'Oumuamua might have been a chip off a Pluto-like object in another star system.

torn-apart star's innards spiral around black hole

Black Holes

Shredded Star Reveals a Dwarf Galaxy’s Central Black Hole

A luminous flare provides astronomers with a rare opportunity to measure the mass of an otherwise quiescent black hole at the center of a dwarf galaxy.

Moon and Mars, Nov 11-12, 2022

Celestial News & Events

This Week's Sky at a Glance, November 11 – 19

The Moon shines in the east with ever-brightening Mars, then it wanes down into the early morning hours to leave the evenings dark for deep-sky observing. Jupiter glares on high. Vega and its binary accompaniments await you in the west.

White dwarf surrounded by debris disk (art)


Ancient White Dwarf Hosts Planetary Graveyard

Scientists have discovered one of the oldest planetary graveyards in the Milky Way: a cool white dwarf "polluted" with rocky debris.

Supernova in a box in galaxy cluster

Stellar Science

Hubble Spies Supernova in Early Universe

Archival Hubble Space Telescope images taken more than a decade ago have revealed an ancient star in the act of exploding.

an illustration of a flaring red dwarf, with a disk of gas and dust containing an earth-like exoplanet.


Shields Up: Red Dwarf Worlds Might Adapt to Hostile Systems

Worlds around red dwarf stars might build an ozone "shield" in response to stellar flares.

2022 Chile group at VLT

People, Places, and Events

Observing Chile’s Finest

During October, Editor in Chief Peter Tyson accompanied 19 adventurous skygazers on a 12-day expedition to Chile — the “astronomy capital of the world” — for a tour of breathtaking landscapes and the magnificent southern sky.

Stars and moon

Explore the Night with Bob King

Election Eclipse — Last Total Lunar Eclipse till 2025

Set the alarm and bring plenty of coffee. We've got a total lunar eclipse coming that you don't want to miss.

Moon with Jupiter, Nov 4-5, 2022

Celestial News & Events

This Week's Sky at a Glance, November 4 – 12

The Moon gets totally eclipsed this week as it walks from Jupiter to Mars. Saturn in the evening sky is at quadrature, which means an effect is under way for telescope users....


Squid Galaxy Gets in on the Neutrino Game

Astronomers have connected dozens of neutrinos detected by the IceCube Observatory to a nearby galaxy, M77, aka the Squid Galaxy.

Auroral oval on Jupiter

Solar System

The Light Show of Jupiter’s Dark Side

The unique vantage point of NASA's Juno spacecraft has revealed a new side to Jupiter's auroras.

Moon and Jupiter in early November 2022

Sky Tour Astronomy Podcast

November: An Eclipse, Meteors & Planets

For most of us, November's switch to standard time means that evening comes early enough to do some casual stargazing before dinnertime. So download or stream our Sky Tour astronomy podcast to find out about this month's lunar eclipse, possible meteor surprises, and much more.

Radar examples

Solar System

Arecibo Legacy: New Data on Near-Earth Asteroids

The largest set of radar data for near-Earth asteroids will help us understand their origins and protect Earth from future impacts.

Moon crossing Sagittarius Teapot, Oct. 28-30, 2022

Celestial News & Events

This Week's Sky at a Glance, October 28 – November 5

The Summer Triangle Effect, a double shadow on Jupiter, the waxing Moon photobombs the solar system's two giants, an Algol dip — plan your skywatching week.


Astronomy in Space with David Dickinson

NASA Lander and Orbiter See (and Feel) New Mars Impacts

NASA's Mars Insight lander and Mars Reconnaissance Orbiter have witnessed two fresh new planet-probing impacts.

An astronaut from the Apollo 11 mission deploys a seismometer on the Moon.

Solar System

New Life for Lunar Seismic Data

A team of planetary scientists has reprocessed Apollo-era seismic data to meet modern forms, ensuring that these precious measurements remain usable for the next generation.

Supernova remnant

Stellar Science

Lightest Neutron Star Ever? Maybe, Maybe Not

A team of astronomers claims to have measured the lightest neutron star, but others say extraordinary claims require extraordinary evidence.


Solar System

Asteroid Samples Reveal Long Journey through the Solar System

Analyses of just 5.4 grams scooped from the asteroid Ryugu are delivering rich new insights into the history of the solar system.


History and Sky Lore

Lost Star Catalog of Ancient Times Comes to Light

Technology may have revealed a piece of the long-lost works of Greek astronomer Hipparchus, one of the greatest astronomers of antiquity.