Category Astronomy/Space

Gas location drives star formation in distant galaxies

The red shade shows the atomic hydrogen gas content of the galaxy overlaid on the optical image. Credit: Legacy Surveys / D. Lang (Perimeter Institute)/ T. Westmeier – ICRAR

In the intriguing realm of star-forming galaxies, the key factor isn’t the total amount of gas but rather its strategic distribution within the galaxy.

Researchers at the International Centre for Radio Astronomy Research (ICRAR) made the discovery about galaxies by studying the gas distribution that helps create stars.

Using CSIRO’s ASKAP radio telescope located at Inyarrimanha Ilgari Bundara, the CSIRO Murchison Radio-astronomy Observatory, researchers explored the gas distribution in about 1,000 galaxies as part of the WALLABY survey.

Lead author Seona Lee, a PhD student at The University of Western Au...

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Missing link in early Martian water cycle discovered

Early Mars, as it may have been, billions of years ago. Graduate students at The University of Texas at Austin have published research that suggests much of the planet’s water was locked underground. Credit: Ittiz/Wikimedia Commons

Astronomers have filled a large gap in knowledge about Mars’ water cycle. Their research on water percolating from surface to aquifer could change the picture of what early Mars was like, suggesting that less of the planet’s water may have been available to become rain and refill lakes and oceans.

Billions of years ago, water flowed on the surface of Mars. But scientists have an incomplete picture of how the Red Planet’s water cycle worked.

That could soon change after two graduate students at The University of Texas at Austin filled a large gap in k...

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Perseverance Mars rover to take a bite of ‘Krokodillen’ region

NASA’s Perseverance Mars rover is exploring a new region of interest the team is calling “Krokodillen” that may contain some of the oldest rocks on Mars. The area has been on the Perseverance science team’s wish list because it marks an important boundary between the oldest rocks of Jezero Crater’s rim and those of the plains beyond the crater.

“The last five months have been a geologic whirlwind,” said Ken Farley, deputy project scientist for Perseverance from Caltech in Pasadena. “As successful as our exploration of ‘Witch Hazel Hill’ has been, our investigation of Krokodillen promises to be just as compelling.”

Named by Perseverance mission scientists after a mountain ridge on the island of Prins Karls Forland, Norway, Krokodillen (which means “the crocodile” in Norwegian) is...

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Astrobee learns to transport soft cargo: Open-source simulator models real ISS challenges

Astrobee is a free-flying robotic system developed by NASA that is made up of three distinct cube-shaped robots. This system was originally designed to help astronauts who are working at the International Space Station (ISS) by automating some of their routine manual tasks.

While Astrobee could be highly valuable for astronauts, boosting the efficiency with which they complete day-to-day operations, its object manipulation capabilities are not yet optimal. Specifically, past experiments suggest that the robot struggles when handling deformable items, including cargo bags that resemble some of those that it might be tasked to pick up on the ISS.

Researchers at Stanford University, University of Cambridge and NASA Ames recently developed Pyastrobee, a simulation environment and co...

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