News tagged with radio telescopes

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Galaxy harbors many star-snacking black holes

(Phys.org) -- Astronomers have found evidence of hundreds of black holes in a galaxy 250 million light years away. The discovery, made with a worldwide network of radio telescopes, gives scientists a new way ...

Jul 02, 2012
4.4 / 5 (9) 4 | with audio podcast

Has the speediest pulsar been found?

(Phys.org) -- NASA's Chandra X-ray Observatory and ESA's XMM-Newton in space, and the Parkes radio telescope in Australia -- may have found the fastest moving pulsar ever seen.

Jun 28, 2012
4.6 / 5 (9) 3 | with audio podcast

Radio galaxies in the distant universe

(Phys.org) -- For over a decade astronomers have been probing a region of the northern sky, not far from the handle of the Big Dipper, that is relatively free of bright stars and the diffuse glow of the Milky ...

Jun 26, 2012
4.8 / 5 (6) 0 | with audio podcast

Neighbor galaxies may have brushed closely: research

(Phys.org) -- Two of our Milky Way's neighbor galaxies may have had a close encounter billions of years ago, recent studies with the National Science Foundation's Green Bank Telescope (GBT) indicate. The new ...

Jun 11, 2012
not rated yet 0 | with audio podcast

Astronomers detect coolest radio star

(Phys.org) -- Astronomers using the world's largest radio telescope, at Arecibo, Puerto Rico, have discovered flaring radio emission from an ultra-cool star, not much warmer than the planet Jupiter, shattering the previous ...

Apr 18, 2012
4.3 / 5 (3) 6 | with audio podcast

Pulsars: The Universe's gift to physics

Pulsars, superdense neutron stars, are perhaps the most extraordinary physics laboratories in the Universe. Research on these extreme and exotic objects already has produced two Nobel Prizes. Pulsar researchers now are poised ...

Feb 19, 2012
5 / 5 (7) 47 | with audio podcast

Do black holes help stars form?

(PhysOrg.com) -- The center of just about every galaxy is thought to host a black hole, some with masses of thousands of millions of Suns and consequently strong gravitational pulls that disrupt material around ...

Feb 03, 2012
4.5 / 5 (6) 1 | with audio podcast

The birth of a telescope 30 times larger than Earth

(PhysOrg.com) -- On 15 November 2011, the Effelsberg 100-meter radio telescope, together with three Russian and one Ukrainian telescope, took part in the first interferometric observations with the orbiting ...

Dec 08, 2011
5 / 5 (21) 5 | with audio podcast

Listening to the stars

It is almost night on the island of Puerto Rico. Astronomer Joanna Rankin raises her head toward the sky. A few of the brightest stars shine through blue cracks in a ragged dome of gray clouds. To her back, ...

Dec 01, 2011
5 / 5 (4) 3 | with audio podcast