2361–2380 of 6,729 results
Comparison of observed and simulated solar corona

Solar System

Scientists Successfully Predicted the Shape of the Solar Corona

Scientists predicted the shape of the solar corona as it would be seen during the August 21, 2017, total solar eclipse. Observations confirmed that they got the broad strokes right.

Moon-Venus-Jupiter in Sept 2018

Sky Tour Astronomy Podcast

Tour September's Sky: Goodbye, Venus!

As told in this month's astronomy podcast, Venus is disappearing in the west after sunset. So September offers you a final chance to see four bright planets at once.

Beta Pictoris b

Exoplanets

Astronomers "Weigh" Beta Pictoris b

Astronomers have a precise new mass measurement for Beta Pictoris b, a young gas giant still in the throes of formation 63 light-years from Earth.

Asteroid Bennu

Solar System

Osiris-REX's First Views of Asteroid Bennu

NASA's Osiris-REX asteroid sample return mission spies target Bennu for the first time. Now the spacecraft is setting up for its close approach in December.

Arecibo Observatory radar system

Professional Telescopes

Arecibo Observatory Emerges from Storm with $6M Upgrade

The famed Arecibo Observatory has faced down several funding challenges in recent years, and a hurricane to boot, but now a new project is making the radio dish more relevant to astronomy than ever.

Map of ice at lunar south pole

Solar System

Direct Evidence of Water Ice at Moon's Poles

After more than a decade of tantalizing but inconclusive hints, new research shows convincingly that patches of water ice lie exposed on the floors of many permanently shadowed lunar craters.

Is the dust clearing?

Solar System

Rover Call Home: NASA Listens for Opportunity's Wake-up

The Opportunity rover fell silent in June after nearly 15 years of work on the Red Planet. Now the dust storm that prevented its batteries from charging is clearing.

Total solar eclipse: August 21, 2017

Astronomy & Observing News

60-second Astro News: Three Stunning Astronomy Pictures

In astronomy news this week: A stunning just-released photo of last year's eclipse, 15,000 galaxies revealed in Hubble's new ultraviolet view of the deep sky, and watching star formation in action in the spiral galaxy M74.

Hottest Jupiter

Exoplanets

Iron and Titanium Found in Ultrahot Jupiter

New observations provide solid evidence of heavy metals in a gas giant exoplanet’s atmosphere.

Exoplanets

Planet Formation Caught in the Act

A team of scientists has captured evidence that PDS 70b, the first directly imaged instance of early planet formation, is actively accreting material, and they’ve measured the rate at which it’s growing.

Brown Dwarf with Aurora

Exoplanets

Auroras Discovered Around Rogue Brown Dwarf

Astronomers have discovered auroras around a set of brown dwarfs — including one that wanders the galaxy by itself — indicating surprisingly strong magnetic fields in these failed stars.

CHIME

Stellar Science

The Storm Begins: Canadian Telescope Spots Its First Radio Burst

The first "fast radio burst" detected by the Canadian CHIME radio telescope is a tantalizing hint of what’s to come.

Parker Solar Probe launch

Solar System

NASA's Parker Solar Probe Launches to "Touch the Sun"

The unique Parker Solar Probe launched on Sunday, August 12th, set to fly faster and come closer to the Sun than any spacecraft before it.

Eta Carinae

Stellar Science

Sibling Rivalry Caused Eta Carinae's Historic Explosion

Faint echoes of light illuminate what really happened during the Great Eruption of the super-star Eta Carinae.

Crown in the western sky

Celestial News & Events

R Coronae Borealis Awakes and Pluto Blocks a Star

Sometimes, it's just as exciting to watch a celestial object fade or disappear as it is to see it explode. We celebrate the "return" of a mysterious variable star and prepare for Pluto to occult a star.

Celestial News & Events

Catch the Perseid Meteor Shower at Its Peak

Plan for optimal conditions for the year’s Perseid meteor shower, early in the mornings of August 12th and 13th.

Gaia

Stellar Science

Mind the Gap: Gaia Mission Reveals the Insides of Stars

Astronomers have discovered a hiccup in stellar luminosities that may point to a new understanding of stellar structure.

Medusae Fossae Formation close-up

Solar System

Found! The Largest Source of Dust on Mars

New results show that the Medusae Fossae Formation, a set of broad and enigmatic plains, provides most of the fine dust found everywhere on the Martian surface.

Mars-Saturn-Moon in August 2018 300p

Celestial News & Events

Tour August's Sky: Perseid Time!

As told in this month's astronomy podcast, August offers excellent viewing conditions for the always-flashy Perseid meteor shower — and a chance to see four bright planets at once.

Black Holes

A Rapidly Spinning Black Hole with a Warped Disk

An X-ray telescope recently installed on the International Space Station has provided a detailed look at a black hole feeding off its companion star.