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Artist's concept of LADEE over moon's surface, via NASA
Blogs | Apr 23, 2014

The zodiacal light, seen from the moon

NASA’s LADEE spacecraft captured images of the eerie zodiacal light seen from the moon, shortly before it made a planned crash-landing on April 17.

Image credit: SISSA Medialab
Science Wire | Apr 23, 2014

Is spacetime like a liquid?

A very slippery superfluid, that’s what spacetime could be like, say physicists.

Lyrid April 22, 2013 via Mike O'Neal
Tonight | Apr 23, 2014

EarthSky’s meteor shower guide for 2014

The Lyrid shower has passed, but you might see a few meteors through about April 26. The Eta Aquarids are next!

Via ESA/C. Carreau
Science Wire | Apr 22, 2014

A dance of supermassive black holes

This is the first time a pair of orbiting, supermassive black holes has been found in an ordinary galaxy.

Blogs | Apr 22, 2014

How to spot the International Space Station

Every so often, the International Space Station (ISS) becomes visible in your night sky. Here’s how you can spot it.

Science Wire | Apr 22, 2014

Whoa! 26 atom-bomb-scale asteroid impacts since 2000

Most exploded over an ocean, and too high in the atmosphere to do damage, but evidence is mounting that asteroid impacts are more frequent than once believed.

This artist's impression shows NASA's Mercury-bound MESSENGER spacecraft from the instrument side. The instruments on the Mercury orbiter are shielded by a ceramic cloth sunshade. Image Credit: Johns Hopkins University Applied Physics Laboratory
Science Wire | Apr 21, 2014

MESSENGER completes 3,000th orbit of Mercury, sets mark for closest approach

MESSENGER has been getting closer to Mercury since March. It’s now closer to the planet than any spacecraft has been before.

Via Cassini spacecraft on December 7, 2000
FAQs | Apr 21, 2014

How do astronomers know the mass of Jupiter?

Learn to find the mass of our solar system’s largest planet, Jupiter, using its orbiting moons.

Tonight | Apr 21, 2014

EarthSky’s top 10 tips for meteor-watchers

You might see a lot or you might not see many, but if you stay in the house, you won’t see any.

Milky Way via Visit Manish Mamtani Photography
Science Wire | Apr 20, 2014

7 ways to celebrate International Dark Sky Week

International Dark Sky Week runs April 20-26, 2014. Learn how to help celebrate and preserve the beauty of the night.

Image credit: NASA
Science Wire | Apr 18, 2014

April 18′s mid-level solar flare

A mid-level flare burst from the sun on April 18. This image, from NASA’s Solar Dynamics Observatory. shows the flare as a bright spot on the sun.

Image credit: ESO
Science Wire | Apr 18, 2014

New image of red nebula 7,300 light-years from Earth

In the middle of little-known nebula Gum 41, brilliant hot young stars are giving off energetic radiation that causes the surrounding hydrogen to glow red.

Blogs | Apr 18, 2014

Find the Big Dipper in van Gogh painting

Have you ever noticed the Big Dipper in van Gogh’s Starry Night over the Rhone?

The artist's concept depicts Kepler-186f, the first validated Earth-size planet orbiting a distant star in the habitable zone—a range of distances from a star where liquid water might pool on the surface of an orbiting planet. The discovery of Kepler-186f confirms that Earth-size planets exist in the habitable zone of other stars and signals a significant step closer to finding a world similar to Earth. The artistic concept of Kepler-186f is the result of scientists and artists collaborating to help imagine the appearance of these distant worlds. Art Credit: Danielle Futselaar.
Science Wire | Apr 17, 2014

First potentially habitable Earth-sized planet discovered

The first Earth-sized exoplanet orbiting within the habitable zone of another star has been confirmed. The new planet, dubbed Kepler-186f, was discovered using NASA’s Kepler telescope.

Residue from a laboratory experiment simulating the conditions of interstellar space. The residue contained vitamin B3 (and related compounds) and may help explain meteorite chemistry. Image credit: Karen Smith
Science Wire | Apr 17, 2014

Did vitamin B3 come from space?

Vitamin B3 – a vitamin essential to metabolism – might have been made in space and delivered to Earth by meteorites.

Image credit: NASA/ESA
Science Wire | Apr 17, 2014

New cross section of the universe

New Hubble image shows objects ranging from cosmic near neighbors to objects seen in the early years of the universe.

Meteor via Cumbrian Sky
Blogs | Tonight | Apr 16, 2014

Start looking for Lyrid meteors!

The Lyrid meteor shower’s peak morning is April 22, but you might see meteors before that date since we’re crossing the Lyrid meteor stream from about April 16 to 25.

Science Wire | Apr 16, 2014

Cosmic slurp: Where a black hole swallows a star

Astronomers have identified galaxies where a central black hole just disrupted and ‘ate’ a star. It’s like a black hole putting up a sign that says: Here I am.

A view of the LHCb experiment at underground Point 8 on the Large Hadron Collider (LHC). The prominent tube is the LHC beam pipe, in which protons circulate at close to the speed of light.
Photo credit: Anna Pantelia/CERN
Science Wire | Apr 15, 2014

Large Hadron Collider discovers new form of matter

Researchers say that exotic hadrons -particles made up of two quarks and two anti-quarks – actually exist.

Screen Shot 2014-03-27 at 4.02.48 PM
Science Wire | Apr 15, 2014

A tetrad of lunar eclipses, next one October 8

Monday’s eclipse marks the beginning of a special eclipse series known as a tetrad – four total lunar eclipses in a row, with no partial eclipses in between. The next one is October 8.

Image credit: NASA
Science Wire | Apr 15, 2014

Is Saturn making a new moon?

A small icy object within the rings of Saturn might be a brand new moon in the process of being born.