Astronomy

NASA's Hubble finds giant halo around the Andromeda Galaxy

Astronomy Magazine - Fri, 05/08/2015 - 04:00
This gaseous atmosphere of our neighboring galaxy is about 1,000 times more massive than previously estimated and stretches halfway to the Milky Way.
Categories: Astronomy

Saturn moon’s activity could be “curtain eruptions”

Astronomy Magazine - Thu, 05/07/2015 - 04:00
Scientists think most of the observed activity on Enceladus represents curtain eruptions from the “tiger stripe” fractures, rather than intermittent geysers along them.
Categories: Astronomy

Fresh evidence for how water reached Earth found in asteroid debris

Astronomy Magazine - Thu, 05/07/2015 - 04:00
New research finds that water-rich asteroids similar to those found in our solar system are plentiful in the galaxy.
Categories: Astronomy

NASA's SDO observes "Cinco de Mayo" solar flare

Astronomy Magazine - Wed, 05/06/2015 - 04:00
This burst of radiation was the most powerful so far this year and already has resulted in a radio blackout.
Categories: Astronomy

Astronomers set a new galaxy distance record

Astronomy Magazine - Tue, 05/05/2015 - 04:00
A team discovered an exceptionally luminous galaxy more than 13 billion years in the past; it existed so long ago that it appears to be only 100 million years old.
Categories: Astronomy

Astronomers find first evidence of changing conditions on a super-Earth

Astronomy Magazine - Tue, 05/05/2015 - 04:00
The ability to peek into the atmospheres of rocky “super-Earths” and observe conditions on their surfaces marks an important milestone toward identifying habitable planets outside the solar system.
Categories: Astronomy

Pulsar with widest orbit ever detected, discovered by high school research team

Astronomy Magazine - Mon, 05/04/2015 - 04:00
Further observations by astronomers using the Green Bank Telescope revealed that this pulsar is part of only a handful of double neutron star systems.
Categories: Astronomy

Strong evidence for coronal heating theory by nanoflares

Astronomy Magazine - Mon, 05/04/2015 - 04:00
Clear evidence now suggests that the heating mechanism depends on regular but intermittent explosive bursts of heat, rather than on continuous gradual heating.
Categories: Astronomy

New exoplanet too big for its star

Astronomy Magazine - Fri, 05/01/2015 - 04:00
Scientists have discovered an exoplanet with Saturn’s mass and Jupiter’s radius orbiting a small, cool star.
Categories: Astronomy

Chandra suggests black holes gorging at excessive rates

Astronomy Magazine - Fri, 05/01/2015 - 04:00
This finding may help astronomers understand how the largest black holes were able to grow so rapidly in the early universe.
Categories: Astronomy

NASA completes MESSENGER mission with impact on Mercury's surface

Astronomy Magazine - Thu, 04/30/2015 - 20:00
With four years and 4,105 orbits around the planet, the spacecraft determined Mercury's surface composition, revealed its geological history, discovered its internal magnetic field is offset from the planet’s center, and verified its polar deposits are dominantly water ice.
Categories: Astronomy

NuSTAR captures possible “screams” from zombie stars

Astronomy Magazine - Thu, 04/30/2015 - 04:00
The space telescope has observed a baffling X-ray glow at the heart of the Milky Way that could involve different classes of stellar corpses.
Categories: Astronomy

The Pillars of Creation revealed in 3-D

Astronomy Magazine - Thu, 04/30/2015 - 04:00
New observations demonstrate how the different dusty pillars of this iconic object are distributed in space and reveal many new details, including a previously unseen jet from a young star.
Categories: Astronomy

MESSENGER mission to impact Mercury today

Astronomy Magazine - Thu, 04/30/2015 - 04:00
After a mission of nearly 11 years, the spacecraft has run out of fuel and will smash into the planet's surface at about 3:26 p.m. EDT.
Categories: Astronomy

Astronomers discover three super-Earths orbiting nearby star

Astronomy Magazine - Wed, 04/29/2015 - 04:00
The team discovered the planets by detecting a wobble of the star HD 7924 as a result of the gravitational pull of the planets orbiting around it.
Categories: Astronomy

NASA's New Horizons detects Pluto surface features, including possible polar cap

Astronomy Magazine - Wed, 04/29/2015 - 04:00
Scientists interpreted the latest image data to reveal that the dwarf planet has broad surface markings – some bright, some dark – including a bright area at one pole that may be a polar cap.
Categories: Astronomy

Water could have been abundant in the first billion years

Astronomy Magazine - Wed, 04/29/2015 - 04:00
Despite young molecular clouds containing far less oxygen than the Sun, theorists still found as much water vapor in the early universe as we see in the Milky Way today.
Categories: Astronomy

First exoplanet visible light spectrum

Astronomy Magazine - Tue, 04/28/2015 - 04:00
Observations revealed new properties of the first exoplant ever discovered around a normal star — 51 Pegasi b.
Categories: Astronomy

Strange supernova is “missing link” in gamma-ray burst connection

Astronomy Magazine - Tue, 04/28/2015 - 04:00
Studies show that supernovae with strong engines and lighter particles produce gamma-ray bursts.
Categories: Astronomy

A sharp view into black holes

Astronomy Magazine - Mon, 04/27/2015 - 04:00
The Event Horizon Telescope has made a step toward taking the first detailed pictures of black holes by adding the South Pole Telescope to its instrumentation lineup.
Categories: Astronomy

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