421–440 of 607 results

Milky Way

Milky Way: Young Stars in an Old Bulge

The presence of stars just 100 million years old in the Milky Way Galaxy’s central regions confirms our galaxy’s nonviolent past.

Red giant star

Stellar Science

The Inner Workings of Red Giant Stars

New research connects stellar pulsations to these stars’ inner, unobservable magnetic fields.

Exoplanets

Searching for Exoplanets Around HL Tau

When astronomers went searching for the planets that must exist around HL Tau, they came up empty — and future searches may not fare much better.

Solar System

Hubble's Stunning New Jupiter Images You Have to See

A Hubble legacy program has returned high-res pictures of Jupiter, revealing changes to the Great Red Spot and mysterious new wisps in the North Equatorial Band.

Mars

People, Places, and Events

Explore Mars in Fiction and Reality

The incredibly popular novel, and now movie, The Martian draws people to the Red Planet with realistic detail. Explore the Red Planet not just in fiction but in reality with our Mars globe and map.

Simulated Submillimeter Galaxy

Galaxies

Making the Brightest, Rarest Galaxies

Some of the universe’s most luminous galaxies are also the most mysterious. New simulations shed light on how these galaxies formed.

Milky Way Center in X-rays

Black Holes

Is the Milky Way's Black Hole Feeding?

The answer is a tantalizing maybe. Astronomers are investigating whether an increase in the number of flares from Sgr A* are due to the recent close passage of a dusty object known as G2.

Supermassive black hole binary

Black Holes

Does the Nearest Quasar Host a Black Hole Binary?

Astronomers are investigating a new technique for finding close pairs of supermassive black holes, and they might have found one in the nearest quasar.

Experiment set-up

Cosmology

Is Dark Energy a Chameleon?

A lab experiment has all but nixed one of the theories of dark energy, a mysterious force pushing the universe apart.

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.

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.

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.

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.

Astronomy & Observing News

Own the Sky & Telescope Collection

The digital archive of Sky & Telescope magazine is an essential resource for astronomers at any level. And this weekend only, get $25 off.

Kepler-452b, Earth's closest twin yet

Exoplanets

Kepler Discovers Earth’s Closest Cousin Yet

The Kepler team announced today the discovery of Kepler-452b, an Earth-size planet in the “goldilocks” zone around a Sun-like star. But is it Earthlike?

Milky Way

Buckyballs Solve Interstellar Mystery

Soccer ball-shaped molecules lurking in the dusty corners of the Milky Way help resolve a long-standing problem.

ASASSN-15lh finder chart

Stellar Science

The Most Luminous Supernova

Astronomers have discovered an exploding star that belongs to the "superluminous" class, and it's the most luminous one ever found.

Black Holes

Revealing Hidden Black Holes

The NuSTAR telescope has spied high-energy X-rays from five supermassive black holes shrouded in a thick veil of dust and gas, a test run that will lead to a better census of these hidden beasts.

Galaxies

Seeing Signs of the First Stars?

Astronomers have come upon the tantalizing signal from some of the universe’s first stars.

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