How Dense Are The Planets?

By Matthew Williams - February 17, 2016 05:30 PM UTC | Planetary Science

The planets of our Solar System vary considerably in terms of density, which is crucial in terms of its classification and knowing how it was formed.

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China to Relocate Thousands for World's Largest Radio Telescope

By Evan Gough - February 17, 2016 05:13 PM UTC | Telescopes

China's new radio telescope will be the largest in the world, and will help in the search for alien life.

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First Super-Earth Atmosphere Detected

By Evan Gough - February 17, 2016 01:57 PM UTC | Exoplanets

Exotic "Diamond Planet" gets even more exotic with the discovery of a hydrogen-rich atmosphere.

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Time-lapse Video Documents Assembly of Webb Telescope Primary Mirror

By ken-kremer - February 16, 2016 09:08 PM UTC | Telescopes

NASA GODDARD SPACE FLIGHT CENTER, MD - A time-lapse video newly released by NASA documents the painstakingly complex assembly of the primary mirror at the heart of the biggest space telescope ever conceived by humankind - NASA's James Webb Space Telescope (JWST).

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Russia's New Ballistic Missiles to be Tested on Asteroids

By Evan Gough - February 16, 2016 07:17 PM UTC | Planetary Science

Russian scientists say design work has already begun on missiles designed to destroy incoming asteroids.

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If You're Going to Fall Into a Black Hole, Make Sure It's Rotating

By Jason Major - February 16, 2016 05:39 PM UTC | Black Holes

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Stunning Images of the February Dawn Planetary Line-up from Around the World

By David Dickinson - February 16, 2016 04:43 PM UTC | Observing

Some great images of the dawn alignment of Mercury, Venus, Mars, Jupiter and Saturn, with a very special sneak peek at all the planetary action to come in 2016.

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Carnival of Space #444

By Susie Murph - February 15, 2016 09:08 PM UTC | Site News

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Messier 3 (M3) - The NGC 5272 Globular Cluster

By tammy-plotner - February 15, 2016 07:30 PM UTC | Observing

Messier Object 3 (aka. NGC 5272), a globular cluster located in the constellation of Canes Venatici, is one of the brightest clusters in the sky.

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Rosetta's Philae Lander in Permanent Sleep

By Jason Major - February 15, 2016 06:56 PM UTC | Missions

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Astronomy Cast Ep. 403: Funding Big Science: from Alma to LIGO to TMT

By Fraser Cain - February 15, 2016 02:56 PM UTC | Site News

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Watch the Moon Beat a Path Across the Hyades Tonight

By David Dickinson - February 15, 2016 01:23 PM UTC | Observing

Watch the Moon as it crosses the Hyades star cluster tonite, and occults the bright star Aldebaran for observers in the United States northwest.

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Was The Big Bang Just A Black Hole?

By Fraser Cain - February 15, 2016 12:00 AM UTC | Cosmology

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Chinese Fusion Test Reportedly Reaches New Milestone

By Matthew Williams - February 14, 2016 09:30 PM UTC | Physics

Researchers at the Experimental Advanced Superconducting Tokamak facility in Hefei, China, claim that they have reached a major milestone in fusion power

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Send Your Sweetie An Out-Of-This-World Valentine

By bob-king - February 13, 2016 11:52 AM UTC | Site News

Looking for a cosmic way to say "I love you" this Valentine's Day? Let Mars, Pluto and Bennu help you out.

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Obama Administration Proposes Smaller 2017 NASA Budget of $19 Billion with Big Exploration Cuts

By ken-kremer - February 12, 2016 09:05 PM UTC | Space Policy

The Obama Administration has announced its new Federal budget and is proposing to cut NASA's Fiscal Year 2017 Budget to $19 billion by carving away significant funding for deep space exploration, whereas the overall US Federal budget actually increases to over $4.1 trillion.

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The Andromeda Constellation

By tammy-plotner - February 12, 2016 06:00 PM UTC | Extragalactic

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Weekly Space Hangout – Feb. 12, 2016: Amy Shira Teitel

By Fraser Cain - February 12, 2016 02:59 PM UTC | Site News

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Retro Travel Posters Show Us The Future

By Evan Gough - February 12, 2016 02:43 PM UTC | Site News

These beautiful, retro-style posters from NASA recall the glory days of space tourism. That haven't happened yet.

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Musk Says Hyperloop Could Work On Mars... Maybe Even Better!

By Matthew Williams - February 12, 2016 02:02 PM UTC | Space Exploration

During the awards ceremony for the Hyperloop Pod Competition, Elon Musk commented on the possibility of Hyperloop on Mars

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