3221–3240 of 6,715 results
51 Eridani b

Exoplanets

Direct-Image Discovery of a Young Jupiter

The Gemini Planet Imager has discovered its first exoplanet, a young Jupiter still glowing with the heat of its formation.

IAU Closing

Exoplanets

At the IAU: New Dwarf Galaxy Neighbors & Dark-Sky Sanctuaries

As the IAU General Assembly in Hawaii'i draws to a close, the results were still coming in: a new bevy of dwarf galaxies discovered around the Milky Way, the celebration of the first Dark-Sky Sanctuary, and a new directly imaged exoplanet to boot.

dwarf disk galaxy RGG 118

Black Holes

Teeny Supermassive Black Hole

Astronomers have identified the smallest supermassive black hole ever detected in a galaxy’s center.

Celestial News & Events

Our Late Night Under the Perseids

Meteors bright and faint rewarded patient watchers of the 2015 Perseid meteor shower. And the show continues tonight.

Perseids crossing Ursa Major

Celestial News & Events

Moonless Nights Make for Fine 2015 Perseids

This year there's no Moon, and the Perseid meteor shower should peak at just the right time for North America. Every three years, more or less, the Moon is new around the peak night of the Perseid meteor shower — and it's that time again. New Moon falls on August…

Dennis di Cicco at the scope

People, Places, and Events

Former S&T Editor Wins Award

The North East Region of the Astronomical League (NERAL) announces the presentation of the prestigious 2015 NERAL Walter Scott Houston award to former Sky & Telescope editor Dennis di Cicco.

Exoplanets

Sunspots and Climate Change, Naming Exoplanets, and More from the IAU

Do sunspots affect climate change? How can you name an exoplanet? Here are the latest results from the world's largest astronomy conference.

GAMA Galaxy Images

Galaxies

"The Universe Is Dying" — So What?

Recent headlines proclaim that the universe is dying, but we’ve actually known that for decades. Here’s what’s really interesting about recent research on the nearby universe.

Perseid radiant

Celestial News & Events

Plan for the Perseids!

Conditions are ideal for watching this year's Perseid meteor shower. Plan ahead!

Protestors at IAU

People, Places, and Events

Aloha to the World’s Astronomers

Hawai‘i is currently hosting the biggest astronomy conference worldwide, the general assembly of the International Astronomical Union, to address current issues in astronomy.

forming brown dwarf

Stellar Science

Brown Dwarfs Form Like Stars

Recent radio observations support the idea that brown dwarfs form like full-fledged stars do.

cold-gas accretion simulation

Cosmology

Gigantic Protogalaxy in the Cosmic Web

Astronomers have found that a massive filament of gas in the early universe actually seems to be a humongous, galaxy-forming disk.

2015 HM10 on closest approach

Solar System

Shedding New Light on Near-Earth Asteroids

Students captured some amazing videos of near-Earth asteroids this past month, demonstrating a powerful tool for learning about some of our nearest celestial neighbors.

HD219134 Light Curve

Exoplanets

Closest Rocky Exoplanet Discovered

Super-Earth HD 219134b is just 21 light-years away, orbiting a nearby orange star that you can see from your backyard.

Informal names on Pluto

Solar System

Alan Stern: What We Found at Pluto

It sounds like science fiction, but it's not: NASA's New Horizons mission explored the Pluto system this summer!

microlensing diagram

Exoplanets

Microlensing Exoplanet Confirmed

Astronomers have confirmed the existence of an exoplanet found via microlensing — the first time they’ve been able to successfully follow up on this method.

The dust pillars of NGC 4921

Galaxies

Cosmic Wind Erodes Distant Galaxy

On Earth, wind can transform entire landscapes - turns out the same is true in space. Galaxy NGC 4921 faces an intracluster wind that's eroding its star-forming terrain.

Sky Tour Astronomy Podcast

Tour August's Sky: Saturn & Scorpius

If you want to do some casual stargazing this month, you'll get great views of Scorpius and Saturn in the south — and the impressive Perseid meteor shower.

White spots on Ceres

Solar System

Dawn Sees Ceres Bright Spots and More

New results from the Dawn orbiter show bright spots, a pyramid-shape mountain, and mysterious haze on the dwarf planet Ceres.

SN 1987A

Stellar Science

Fade Out (For Now) on SN 1987A

The famous supernova continues to transform: its necklace of hotspots is fading away as the shock wave moves further out.