News tagged with radio telescopes

Australia hails surprise super-telescope decision

Australia has hailed a surprise decision giving it a role in a radio telescope project aimed at revolutionising astronomy, vowing to draw on its decades of experience in space science.

Space & Earth / Astronomy

created May 26, 2012 | popularity 5 / 5 (4) | comments 3

SAfrica stops short of being disappointed over SKA verdict

South Africa stopped short of expressing disappointment after it failed to win the bid to single-handily host the world's most powerful radio telescope.

Space & Earth / Space Exploration

created May 25, 2012 | popularity 1 / 5 (2) | comments 0

SKA super telescope to be built in Australia, South Africa (Update 2)

A long-running joust to host a radio telescope that would give mankind its farthest peek into the Universe ended on Friday with a Solomon-like judgement to split the site between Australia and South Africa.

Space & Earth / Astronomy

created May 25, 2012 | popularity 4.9 / 5 (7) | comments 4

Colliding galaxy cluster unravelled

An international team of astronomers has used the International LOFAR Telescope from ASTRON, the Netherlands Institute for Radio Astronomy, to study the formation of the galaxy cluster Abell 2256.

Space & Earth / Astronomy

created May 24, 2012 | popularity 4.8 / 5 (4) | comments 2

Three-telescope interferometry allows astrophysicists to observe how black holes are fueled

(Phys.org) -- By combining the light of three powerful infrared telescopes, an international research team has observed the active accretion phase of a supermassive black hole in the center of a galaxy tens ...

Space & Earth / Astronomy

created May 16, 2012 | popularity 4.9 / 5 (13) | comments 1 | with audio podcast

Massive black holes halt star birth in distant galaxies

Astronomers, using the European Space Agency's (ESA) Herschel Space Observatory, have shown that the number of stars that form during the early lives of galaxies may be influenced by the massive black holes ...

Space & Earth / Astronomy

created May 09, 2012 | popularity 4.6 / 5 (7) | comments 34 | with audio podcast

Record-breaking radio waves discovered from ultra-cool star

Penn State University 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, ...

Space & Earth / Astronomy

created Apr 30, 2012 | popularity 5 / 5 (3) | comments 2 | with audio podcast

SKA super-telescope: Split site being considered

Plans to build the world's most powerful radio telescope are looking at whether the site can be split between rival bidders South Africa and Australia, organisers said on Thursday.

Space & Earth / Astronomy

created Apr 19, 2012 | popularity 5 / 5 (2) | comments 0

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 ...

Space & Earth / Astronomy

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

Further delays signalled in super-telescope plan

The international consortium behind a plan to build the world's most powerful radio telescope on Wednesday signalled further delays in deciding whether it should be hosted by South Africa or Australia.

Space & Earth / Astronomy

created Apr 04, 2012 | popularity 4.3 / 5 (3) | comments 0

Korean connection makes an 8,000-km telescope

Australian and Korean radio telescopes have been linked for the first time, forming a system that acts as a telescope 8000 km across.Australian and Korean radio telescopes have been linked together for the first time, forming ...

Space & Earth / Space Exploration

created Apr 04, 2012 | popularity 4.5 / 5 (2) | comments 0

Karl G. Jansky Very Large Array: Famous radio telescope officially gets new name

Astronomers and officials from around the globe gathered on the high desert of New Mexico Saturday to officially bestow a new name on the world's most famous radio telescope and to mark its transformation ...

Space & Earth / Space Exploration

created Apr 03, 2012 | popularity 5 / 5 (2) | comments 0

South Africa confident on super-telescope bid ahead of talks

South African science minister Naledi Pandor said Thursday she remains confident on her country's bid to host the world's most powerful radio telescope, ahead of a crucial meeting next week.

Space & Earth / Space Exploration

created Mar 29, 2012 | popularity 5 / 5 (1) | comments 0

e-MERLIN's deep radio survey of the Hubble Deep Field: first results

(PhysOrg.com) -- A team of astronomers at Jodrell Bank Observatory have begun the deepest ever high-resolution radio imaging of the region around the Hubble Deep Field (HDF), the images originally captured ...

Space & Earth / Astronomy

created Mar 27, 2012 | popularity 4 / 5 (5) | comments 1

Debate still raging on site for super-telescope

An international consortium planning to build the world's most powerful radiotelescope is still debating whether South Africa or Australia should host the $2 billion project, an official said Friday.

Space & Earth / Space Exploration

created Mar 23, 2012 | popularity 5 / 5 (1) | comments 3

Radio telescope

A radio telescope is a form of directional radio antenna used in radio astronomy and in tracking and collecting data from satellites and space probes. In their astronomical role they differ from optical telescopes in that they operate in the radio frequency portion of the electromagnetic spectrum where they can detect and collect data on radio sources. Radio telescopes are typically large parabolic ("dish") antenna used singularly or in an array. Radio observatories are located far from major centers of population in order to avoid electromagnetic interference (EMI) from radio, TV, radar, and other EMI emitting devices. This is similar to the locating of optical telescopes to avoid light pollution, with the difference being that radio observatories will be placed in valleys to further shield them from EMI as opposed to clear air mountain tops for optical observatories.

For more information about Radio telescope, read the full article at Wikipedia.
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