Astronomy

Hubble finds phantom objects near dead quasars

Astronomy Magazine - Fri, 04/03/2015 - 04:00
The glowing filaments indicate that these active galaxy cores were once emitting more energy or changed very rapidly, which they weren’t supposed to do.
Categories: Astronomy

Simulations dispute dogma — rocky planets may orbit many double stars

Astronomy Magazine - Fri, 04/03/2015 - 04:00
Scientists believe non-gaseous planets are as prevalent around binaries as around single stars.
Categories: Astronomy

<i>Astronomy</i> announces 2014 Out-of-this-world Award winner

Astronomy Magazine - Fri, 04/03/2015 - 04:00
Out of more than 15 entries, the St. Louis Astronomical Society wins Astronomy’s annual award honoring astronomy outreach programs.
Categories: Astronomy

Astronomers watch unfolding saga of massive star formation

Astronomy Magazine - Thu, 04/02/2015 - 04:00
By studying a young star in images 18 years apart, scientists have been able to see exactly what their models predicted.
Categories: Astronomy

Astronomers solve decades-long mystery of the “lonely old stars”

Astronomy Magazine - Thu, 04/02/2015 - 04:00
A recent study shows that RR Lyrae stars may not be as lonely as previously thought.
Categories: Astronomy

Herschel and Planck find missing clue to galaxy cluster formation

Astronomy Magazine - Wed, 04/01/2015 - 04:00
Pinpointing when and how they formed should provide insight into the process of galaxy cluster evolution, including the role played by dark matter in shaping these cosmic metropolises.
Categories: Astronomy

Saturn spacecraft returns to the realm of icy moons

Astronomy Magazine - Wed, 04/01/2015 - 04:00
Cassini’s orbits had carried it high above the planet’s poles over the past two years, during which the mission’s ability to encounter the moons, apart from Titan, was limited.
Categories: Astronomy

Comet dust: Planet Mercury’s invisible paint

Astronomy Magazine - Tue, 03/31/2015 - 04:00
A new study suggests carbon from comets breaking apart acts like a stealth darkening agent on the innermost planet.
Categories: Astronomy

As stars form, magnetic fields influence regions big and small

Astronomy Magazine - Tue, 03/31/2015 - 04:00
Even though cosmic magnetic fields are much weaker than Earth's magnetic field, they have an important effect in regulating how stars form.
Categories: Astronomy

Ancient martian lake system records two water-related events

Astronomy Magazine - Mon, 03/30/2015 - 04:00
The earlier episode at Jezero Crater formed clay minerals, and then later surface water activity transported them.
Categories: Astronomy

Astronomers upgrade their cosmic light bulbs

Astronomy Magazine - Mon, 03/30/2015 - 04:00
In a new report, scientists show that using a particular class of type Ia supernovae that occur near youthful stars can improve measurements of cosmic distances.
Categories: Astronomy

VLT confirms that G2 survived close approach and is a compact object

Astronomy Magazine - Fri, 03/27/2015 - 04:00
It is most likely to be a young star with a massive core that is still accreting material.
Categories: Astronomy

Hubble and Chandra discover dark matter is not as sticky as once thought

Astronomy Magazine - Fri, 03/27/2015 - 04:00
Dark matter does not slow down when colliding with each other, which means that it interacts with itself even less than previously thought.
Categories: Astronomy

Suzaku, Herschel link a black-hole “wind” to a galactic gush of star-forming gas

Astronomy Magazine - Thu, 03/26/2015 - 04:00
The finding validates a long-suspected feedback mechanism enabling a supermassive black hole to influence the evolution of its host galaxy.
Categories: Astronomy

I ZW 18: The galaxy that reveals the universe’s history

Astronomy Magazine - Thu, 03/26/2015 - 04:00
The dwarf galaxy is the least abundant in metals in the nearby universe and one of the most akin to the primeval galaxies.
Categories: Astronomy

Our solar system may have once harbored super-Earths

Astronomy Magazine - Wed, 03/25/2015 - 04:00
The new work addresses why the terrestrial planets in our solar system have such relatively low masses compared to the exoplanets orbiting other Sun-like stars.
Categories: Astronomy

Curiosity rover finds biologically useful nitrogen on Mars

Astronomy Magazine - Wed, 03/25/2015 - 04:00
Scientists have long thought that nitrates would be produced on the Red Planet from the energy released in meteorite impacts, and the amounts they found agree with estimates from this process.
Categories: Astronomy

NASA’s SOFIA finds missing link between supernovae and planet formation

Astronomy Magazine - Tue, 03/24/2015 - 04:00
Observations reveal that a particular supernova produced a cloud that contains enough dust to make 7,000 Earths.
Categories: Astronomy

NASA satellites catch a “growth spurt” from a newborn protostar

Astronomy Magazine - Tue, 03/24/2015 - 04:00
The observed outburst reveals a sudden accumulation of gas and dust.
Categories: Astronomy

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