Iridium satellites spark bright sky nuisance, amateur astronomers warned
New Scientist reports Iridium LLC has launched 46 of 72 planned satellites into a highly reflective 780 kilometer orbit forming a global mobile network. Each satellite carries three antennas that act as sunlit mirrors producing flares up to 20 seconds, peaking at 23 times Venus brightness, potentially interfering with visible-wavelength astronomy and irritating observers.
MENTIONED IN THIS ARTICLE
Constellation of Communications
Iridium LLC
Washington D.C
Rob Matson
Science Applications International Corporation
Los Angeles
Venus
Earth
Dan Green
Hnward-Smithsonian Center For Astrophysics
Cambridge
Mass
Iridium
Green
Earthlike planet hinted around young Beta Pictoris star
Astronomers using the Hubble Space Telescope glimpse a dust disk around the young sunlike star Beta Pictoris and find signs of warping by a potential planet. The findings suggest a rocky inner world may form here much like Earth in our solar system.
MENTIONED IN THIS ARTICLE
Ashington
Hubble Space Telescope
Beta Pictoris
Beta Fictoris
Uranus
Canine noses prove powerful in scent detection across agencies
In Sacramento and Hawaii, dogs detect termites, snakes, contraband, and even cadavers. Experts note about 200 million scent receptors in dogs versus 5 million in humans, explaining superior smell. Training relies on food or play drives, with handlers praising cooperative learning and the dogs’ teamwork with people.
MENTIONED IN THIS ARTICLE
Sacramento
Calif
Reno
Nev
Cricket
Annie
San Francisco
Hawaii
Sandlers
Lester Kaishi
Kaishi
Guam
Lynette Hart
Center For Animals In Society
University of California, Davis
School of Veterinary Medicine
Art
Lawrence Myers
Auburn University
Alabama
Myers
Stuart Firestein
Columbia University
Larry Peabody
California Rescue Dogs Association
Juni
Andrew Solarz
Annapolis
Solarz
Hart
San Francisco International Airport
Tori Lyon
Sky watch Orion Nebula described as stellar incubator
The Orion Nebula glows with a fluorescent light and appears as a greenish fan through a telescope. It is a vast star forming region about 30 light years across, containing mass 10,000 times that of the Sun, yet with density below a millionth of a lab vacuum. Nearby notes recount Lyon's dog Annie finding meat, bologna, and apples in unlikely places.
MENTIONED IN THIS ARTICLE
Solar System
Uranus
Neptne
Pluto
Jupiter
Orion Nebula
Qrion
Earth
Orion
Lyon
Annie
Iceland
Italy
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London
New Scientist
David Chandler
The
Boston Globe
NASA
Sky Watch
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