Tag Space & astronomy
Partnering with NASA to grow plants in space
For many people, outer space and agriculture do not go together. But Simon Gilroy, professor of botany at UW–Madison, is working to learn how to effectively grow plants, and eventually gardens, in space. A sustainable, self-contained food source will allow astronauts to travel farther.
UW astronomer recognized for demystifying star system
Sebastian Heinz has been honored by the American Astronomical Society for his work to unravel the mystery of Circinus X-1, a bizarre binary star system in our galaxy that exploded some 2,500 years ago.
Clouds, like blankets, trap heat and are melting the Greenland Ice Sheet
A new study shows clouds are playing a larger role in heating the Greenland Ice Sheet than scientists previously believed, raising its temperature by 2 to 3 degrees compared to cloudless skies.
Study questions dates for cataclysms on early moon, Earth
Phenomenally durable crystals called zircons are used to date some of the earliest and most dramatic cataclysms of the solar system. One is the super-duty collision that ejected material from Earth to form the moon roughly 50 million years after Earth formed. Another is the late heavy bombardment, a wave of impacts that may have created hellish surface conditions on the young Earth, about 4 billion years ago.
Ancient rocks record first evidence for photosynthesis that made oxygen
A new study shows that iron-bearing rocks that formed at the ocean floor 3.2 billion years ago carry unmistakable evidence of oxygen. The only logical source for that oxygen is the earliest known example of photosynthesis by living organisms, say University of Wisconsin–Madison geoscientists.
Recent sightings: Moon over Madison
Seen from the roof of Memorial Library, a supermoon rises in the nighttime sky behind the Wisconsin statue headdress atop the dome of the Wisconsin State Capitol building on Sept. 27, 2015.
Balzan Prize goes to UW neutrino pioneer
Francis Halzen, the University of Wisconsin–Madison physicist and leader of the giant neutrino telescope known as IceCube, has been named winner of a 2015 Balzan Prize.
New data from Antarctic detector firms up cosmic neutrino sighting
Researchers using the IceCube Neutrino Observatory have sorted through the billions of subatomic particles that zip through its frozen cubic-kilometer-sized detector each year to gather powerful new evidence in support of 2013 observations confirming the existence of cosmic neutrinos.
Novel Morgridge technology may illuminate mystery moon caves
It's widely believed that the moon features networks of caves created when violent lava flows tore under the surface from ancient volcanoes. Some craters may actually be "skylights" where cave ceilings have crumbled.
Neutron star’s echoes give astronomers a new measuring stick
In late 2013, when the neutron star at the heart of one of our galaxy’s oddest supernovae gave off a massive burst of X-rays, the resulting echoes — created when the X-rays bounced off clouds of dust in interstellar space — yielded a surprising new measuring stick for astronomers.
Dark energy to be topic of Space Place event
"To Infinity and Beyond: The Accelerating Universe," a live broadcast from the World Science Festival about dark energy, an antigravitational force that confounds the conventional laws of physics, will be hosted on the evening of May 28 by UW–Madison's Space Place.
Wisconsin contributions helped Hubble Space Telescope soar
It was “the flea on the tail of the dog.” Roughly 30 years ago, that was how University of Wisconsin–Madison astronomy Professor Robert C. Bless described the High Speed Photometer (HSP), a detector then under development at UW–Madison for the soon-to-be-launched Hubble Space Telescope.
Hubble Space Telescope to star at April 14 Space Place event
Twenty-five years of spectacular imagery and groundbreaking astronomy from the Hubble Space Telescope will be the subject of a Tuesday, April 14 public presentation at UW–Madison’s Space Place.
Automation offers big solution to big data in astronomy
It’s almost a rite of passage in physics and astronomy. Scientists spend years scrounging up money to build a fantastic new instrument. Then, when the long-awaited device finally approaches completion, the panic begins: How will they handle the torrent of data?
Slideshow: Pieces of UW–Madison astronomy history off to the nation’s attic
While cleaning out Sterling Hall cabinets that hadn’t been opened in decades, UW–Madison Space Place Director Jim Lattis and colleagues in the Astronomy Department struck historical gold: a collection of old photodiode and photomultiplier tubes dating to the earliest days of photoelectric astronomy. The university is donating 20 of the vintage photo detectors to the Smithsonian Institution for its permanent collection of astronomical instruments.
Letting off steam: Gas discharge terminates galaxy’s star formation
With the help of a radio telescope in the French Alps, an international team of astronomers, including two from the University of Wisconsin–Madison, has observed a never-before-seen stage of galactic evolution. Writing in this week’s Nature, a group that includes UW–Madison astronomers Aleks Diamond-Stanic and Christy Tremonti, reports measurements of dense, cold hydrogen gas being blasted from a distant star-forming galaxy, the first direct observation of the “blow out” phase of a galaxy’s evolution.
Telescopes hint at neutrino beacon at the heart of the Milky Way
Thanks to a confluence of data from a suite of vastly different telescopes, there are tantalizing clues that the massive black hole at the core of the Milky Way may be a cosmic accelerator. In a recent paper published in the journal Physical Review D, a team led by University of Wisconsin–Madison physicist Yang Bai reports a correlation of IceCube data with a recorded burst of X-rays from Sagittarius A, an object at the center of our galaxy that is believed to be a supermassive black hole.
Satellite history at UW–Madison comes full circle with award
Michael Pavolonis thinks of himself as a volcano guy.
UW team’s plants return to Earth after growing in space
Researchers at Simon Gilroy's lab in the Department of Botany at the University of Wisconsin–Madison expect to greet a truck this afternoon that is carrying small containers holding more than 1,000 frozen plants that germinated and grew aboard the International Space Station.