Science Journals RSS Feeds
Sponsored Links
Recent Comments

    Astronomy

    Astronomers detect synchronous X-ray and radio mode switching of the pulsar PSR B0823+26

    An international team of astronomers has detected synchronous X-ray and radio mode switching between radio-bright and a radio-quiet modes in the pulsar PSR B0823+26. The discovery marks the second time that such synchronous mode switching has been observed in a pulsar. The finding is detailed in a paper published August 6 on arXiv.org. …read more

    Source:: Physorg space news

          

    New telescope chases the mysteries of radio flashes and dark energy

    South Africa is becoming one of the world’s most important radio astronomy hubs, thanks in large part to its role as co-host of the Square Kilometre Array (SKA). Now a new telescope is being unveiled that will be built at the SKA South Africa site in the Karoo. The Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX) project is an international collaboration being led by scientists from the University of KwaZulu-Natal. The Conversation Africa chatted to project leader Professor Kavilan Moodley about HIRAX’s scientific goals. …read more

    Source:: Physorg space news

          

    What is NASA’s Heat Melt Compactor?

    Dealing with trash is a challenge wherever people work and live, and space is no exception. Astronauts produce a couple of pounds of trash per crew member per day. To better manage this, NASA is developing a new trash processing system to demonstrate on the International Space Station. This work is critical for potential future missions traveling farther from Earth, to the moon and Mars, and for longer periods of time. Current modes of trash disposal and waste management will not be available at the extreme durations and distances these missions will require – while the space station is only 250 miles above us in low-Earth orbit, the moon is about 240,000 miles away, and Mars is on average about 140,000,000 miles away! In addition, the new system will give astronauts the ability to recover valuable resources from their trash, an important thing when you have to take everything with you. …read more

    Source:: Physorg space news

          

    Six things about Opportunity’s recovery efforts

    NASA’s Opportunity rover has been silent since June 10, when a planet-encircling dust storm cut off solar power for the nearly-15-year-old rover. Now that scientists think the global dust storm is “decaying”—meaning more dust is falling out of the atmosphere than is being raised back into it—skies might soon clear enough for the solar-powered rover to recharge and attempt to “phone home.” …read more

    Source:: Physorg space news

          

    Magnetized inflow accreting to center of Milky Way galaxy

    Are magnetic fields an important guiding force for gas accreting to a supermassive black hole (SMBH) like the one that our Milky Way galaxy hosts? The role of magnetic fields in gas accretion is little understood, and trying to observe it has been challenging to astronomers. Researchers at the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), Taiwan, led by Dr. Pei-Ying Hsieh, have obtained a good measurement by using the instruments on the James Clerk Maxwell Telescope (JCMT). Their result provides clear evidence that the orientation of the magnetic field is in alignment with the molecular torus and ionized streamers rotating with respect to Sagittarius A*—the black hole at the center of the Milky Way. The findings are published in Astrophysical Journal in 2018 August. …read more

    Source:: Physorg space news

          

    Another way for stellar-mass black holes to grow larger

    A trio of researchers with The University of Hong Kong, Academia Sinica Institute of Astronomy and Astrophysics in Taiwan and Northwestern University in the U.S., has come up with an alternative theory to explain how some stellar-mass black holes can grow bigger than others. In their paper published in The Astrophysical Journal Letters, Shu-Xu Yi, K.S. Cheng and Ronald Taam describe their theory and how it might work. …read more

    Source:: Physorg space news

          

    Donald Trump’s Space Force plans analysed by a sci-fi expert

    The US leadership has plans to introduce a “US Space Force” by 2020. Already announced by president Donald Trump in June, US vice president Mike Pence outlined further details of the plan at a press conference on August 9. The Space Force, he said, would consist of an elite corps of soldiers trained to fight in space, and a space command that would design military strategies for warfare beyond the atmosphere. …read more

    Source:: Physorg space news

          

    Sponsored Links
    Archives

    Copyright © 2013. All Rights Reserved.