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News

Your online destination for news articles on planets, cosmology, NASA, space missions, and more. You’ll also find information on how to observe upcoming visible sky events such as meteor showers, solar and lunar eclipses, key planetary appearances, comets, and asteroids.

Wednesday, March 29, 2017

Dark matter and dwarf galaxies share the space around the Milky Way

The current “standard model” of cosmology, often called the Lambda-Cold Dark Matter model or ΛCDM for short, is the model astronomers use to understand the past, present, and future of the universe. In the ΛCDM model, which ...
Tuesday, March 28, 2017

Rethinking the Habitable Zone

With proof of liquid water in the farthest reaches of the solar system, it’s clear that the habitable zone isn’t the only place life might exist, but it may be years before that knowledge changes how — and where — astrobiologi...

Astronomers find a puzzling pair of merging galaxies

Galaxy mergers are common throughout the universe. In fact, mergers are responsible for transforming the numerous small galaxies that existed early in cosmic history into the massive galaxies we see today. But because mergers take, on average, about ...
Friday, March 24, 2017

Astronomers spot a runaway quasar

Supermassive black holes reside at the centers of most galaxies — or do they? A new detection by the Hubble Space Telescope (HST) points to an active supermassive black hole in the process of fleeing its galaxy. The astronomers who spotted it s...

NASA’s NuSTAR solves the mystery of the Andromeda galaxy’s high-energy X-rays

The Andromeda galaxy (M31) is the Milky Way’s largest neighbor, as well as the largest member of our Local Group. A spiral galaxy much like our own, astronomers often use Andromeda as a proxy to study the Milky Way, since we can’t simply ...
Thursday, March 23, 2017

How exoplanets can violently die

Like an aging relative, a planet can suffer a slow decline, spiraling gradually into its star. Or its death can be quick, a relative eyeblink as its sun abruptly changes. Understanding these deaths can help scientists better glimpse the life and evol...

Launch Ladies children’s book highlights the women behind space exploration

The idea of space exploration has captured the hearts and minds of humankind since long before NASA put a man on the Moon. Following this amazing accomplishment, the reality of human spaceflight has continued to fascinate and inspire in the ensuing d...
Wednesday, March 22, 2017

Rosetta spots major changes on comet 67P

Planets and moons aren’t the only geologically active places to be found in the solar system — recent data returned from the European Space Agency’s Rosetta mission highlight the fact that comets can become geologically active, too....

New study finds martian volcano’s last eruption

The rough estimate for the dinosaurs’ extinction was about 50 million years ago, but NASA reveals that may not be the only thing that disappeared around that time. New research from NASA shows that Arsia Mons, a large volcano just south of Ma...
Tuesday, March 21, 2017

Is it time to restore Pluto’s planetary status?

In August 2006, Pluto lost its status as the solar system’s ninth planet when the International Astronomical Union (IAU) reclassified it as a “dwarf planet.” The ruling, though controversial among both astronomers and the general pu...
Monday, March 20, 2017

New theory suggests Mars had rings in the past

Mars has always been identified as "the Red Planet," but a new theory suggests Mars may be able to add another identifier. A recent theory by NASA-funded scientists at Purdue University in Lafayette, Indiana, that was published in the Nature Geoscie...
Thursday, March 16, 2017

Lakes on Titan may fizz with nitrogen bubbles

Titan’s hydrocarbon lakes may occasionally erupt with dramatic patches of bubbles according to a recent study funded by NASA. Researchers at NASA’s Jet Propulsion Laboratory (JPL) simulated Titan’s conditions and found that changes...
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