Think it takes James Webb Space Telescope money-pit type funding to do (or someday do) astronomy these days?
Not so, some astronomers get it done with a lens equivalent to a digital camera. As the saying goes, it's not the size of your aperture, it's the vigor of your numerical analysis that counts.
The KELT North telescope in southern Arizona has a tiny lens - really tiny. But it has revealed the existence of two very unusual faraway planets in a big way, according to Ohio State University doctoral student Thomas Beatty and Vanderbilt University research scientist Robert Siverd, who detailed their discoveries for the KELT-North team at the American Astronomical Society national meeting in Anchorage.
The winner picture of the Venus transit must be the one below, whose original version can be found here
. Thanks Bente Lilya Bye for posting the link on her Facebook page!
The picture was taken by Hinode, a joint JAXA-NASA mission to study the Sun's magnetism in and around sunspots.
Tuesday, June 5th, 2012 at 3:03 PM PDT (California), Venus will do something we on Earth will have witnessed for only the eighth since the invention of the telescope - it will cross in front of the sun. This transit is among the rarest of planetary alignments and it has an interesting cycle. Two Venus transits always occur within eight years of each other and then there is a break of either 105 or 121 years before it happens again.
Today's primer: orbital mechanics, or how we have to manuever to catch debris. There's a lot of debris in low earth orbit, ranging from paint chips and spare bolts to a heavy toolbox up through entirely dead satellites. It's tracked, it's plentiful, it was even featured in Wall-E. How is it a satellite in orbit runs into debris?
The Square Kilometre Array telescope will be the world’s largest and most sensitive radio telescope, but it had a bit of a problem most big science projects do not have; multiple countries wanted to host it.
Is it cheaper to privatize deliveries? Sure is, that is why UPS and FedEx are doing well and the US Post Office is now advertising that companies should send more junk mail and waste natural resources.(1)
Shortly after celebrating the tenth anniversary of its time in service, engineers have declared the Envisat satellite lost, following numerous attempts to re-establish contact since April 8th.
I've some background in space weather-- the influence of solar activity on Earth and near-Earth orbits. My new job as a professor at Capitol College has brought me into contact with several bright students working on using picosatellites to test our orbital debris removal concepts. Further, the number of other groups doing balloon and picosatellite work is increasing (yay!) So it's time to update this column more frequently with not only my progress, but stories of other pico teams.
100 years yesterday, the RMS Titanic struck an iceberg while crossing the North Atlantic and sank, killing over 1500 passengers and crew.
On April 5, 2010, the sun spewed a two million-mile-per-hour stream of charged particles toward the magnetosphere, the invisible magnetic fields surrounding Earth.
As the particles interacted with the magnetic fields, the incoming stream of energy caused stormy conditions near Earth. Some scientists believe that it was this solar storm that interfered with commands to a communications satellite, Galaxy-15, which subsequently foundered and drifted, taking almost a year to return to its station.