Astronomy

A new study in Geophysical Research Letters argues there needs to be an underground source of heat for liquid water to exist underneath the Martian southern polar ice cap. (Image: NASA)
Feb. 14, 2019
A new study conducted by UA planetary scientists suggests volcanoes may have been recently boiling deep below the surface of the Red Planet.
John Cocke (Photo courtesy of Nathaniel Johnston/njohnstonphotography.com)
Feb. 8, 2019
In 1969, UA scientists were the first to detect the optical flash from a pulsar — a stellar corpse thought to pack at least one-and-a-half times the mass of our sun into a neutron star.
"I didn't realize until I moved to England what a desert rat I have become," says astronomy professor Robert C. Kennicutt Jr. (Photo courtesy of Texas A&M University College of Science)
Jan. 28, 2019
The awards keep coming for Robert C. Kennicutt Jr., who was recently honored by both the National Academy of Sciences and the Royal Astronomical Society.
Astronauts at the International Space Station participated in a study to determine long-term spaceflight's effect on the immune system. (Photo: NASA/CC BY-NC 2.0)
Jan. 24, 2019
Astronauts who embarked on spaceflights lasting longer than six months experienced a decrease in the functionality of NK cells, which play an important role of the immune system by killing cancerous cells and preventing viruses from reactivating.
This artist’s impression shows how J043947.08+163415.7, a very distant quasar powered by a supermassive black hole, may look close up. This object is by far the brightest quasar yet discovered in the early universe. (Image: ESA/Hubble, NASA, M. Kornmesser)
Jan. 9, 2019
Two UA-managed telescopes have aided in the serendipitous discovery of the brightest quasar ever seen in the early universe, which suggests there could be more waiting to be discovered.
An artist's illustration of what Phaeton might look like up close. (Image: Heather Roper)
Oct. 24, 2018
An international team led by Teddy Kareta, a doctoral student at the UA's Lunar and Planetary Laboratory, investigated (3200) Phaethon, a bizarre asteroid that sometimes behaves like a comet, and found it even more enigmatic than previously thought.
Ceres is a dwarf planet that orbits the sun between Mars and Jupiter. In this image, Ahuna Mons can be seen in the bottom right of Ceres's profile. (Photo: NASA/JPL/Caltech/UCLA/MPS/DLR/IDA)
Sept. 14, 2018
In a new study by UA planetary scientists, observations prove that ice volcanoes on the dwarf planet Ceres generate enough material to fill one movie theater each year.
Like everything else in our solar system, Earth is constantly buffeted by the solar wind, a stream of high-energy particles from the sun. Life can only thrive in the Earth's protective bubble provided by its atmosphere and magnetic field. (Credits: NASA’s Goddard Space Flight Center/Scientific Visualization Studio/Greg Shirah)
Aug. 8, 2018
Researchers in the UA Lunar and Planetary Lab are eagerly awaiting the launch of the Parker Solar Probe, the first attempt to get close to the sun and study the solar wind at its source.
Eta Carinae as imaged with the Hubble Space Telescope (Image: Nathan Smith and NASA)
Aug. 3, 2018
Data obtained by a clever technique that can detect light echoes hint at why Eta Carinae, the most luminous and massive star in the Milky Way, erupted like a supernova, yet survived.

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