https://www.universetoday.com/157800/another-ghostly-spiral-galaxy-revealed-by-jwst/ preview's
Another Ghostly Spiral Galaxy Revealed by JWST

The famous American baseball player once said, “You can observe a lot just by watching.” That’s certainly true of the JWST, which just released its latest “spider-web” image of a distant galaxy. It “watched” IC 5332 using the onboard Mid-InfraRed Instrument (MIRI). In the process it observed spectacular details not easily seen in visible light. … Continue reading "Another Ghostly Spiral Galaxy Revealed by JWST" The post Another Ghostly Spiral Galaxy Revealed by JWST appeared first on Universe Today.
2022-09-27 15:45:02
https://www.universetoday.com/157799/climate-change-is-making-the-skies-worse-for-astronomy/ preview's
Climate Change is Making the Skies Worse for Astronomy

Light pollution. Satellite trains and radio frequency interference. Encroaching civilization. These all pose threats to ground-based astronomy. But, did anyone ever think that global climate change might wreak havoc on observatories? It turns out the answer is “yes.” We’re all familiar with the predictions about global climate change. It will make hot places hotter, cold … Continue reading "Climate Change is Making the Skies Worse for Astronomy" The post Climate Change is Making the Skies Worse for Astronomy appeared first on Universe Today.
2022-09-27 14:00:03
https://www.universetoday.com/157775/tess-finds-a-super-earth-and-two-mini-neptunes-in-a-single-system/ preview's
TESS Finds a Super-Earth and two Mini-Neptunes in a Single System

A recent study based on TESS data has revealed a three-planet system (two mini-Neptunes and a Super-Earth) just over 200 light-years away. The post TESS Finds a Super-Earth and two Mini-Neptunes in a Single System appeared first on Universe Today.
2022-09-27 13:45:03
https://www.universetoday.com/157794/this-is-the-last-thing-dart-saw-as-it-smashed-into-its-asteroid-target/ preview's
This is the Last Thing DART saw as it Smashed Into its Asteroid Target

The first-ever planetary defense technology demonstration mission successfully conducted its mission, slamming into the surface of a distant asteroid and going out in a blaze of glory. NASA’s Double Asteroid Redirection Test (DART) spacecraft acted as a kinetic impactor, colliding with the small and harmless asteroid Dimorphos on September 26 at 7:14PM ET, with the … Continue reading "This is the Last Thing DART saw as it Smashed Into its Asteroid Target" The post This is the Last Thing DART saw as it Smashed Into its Asteroid Target appeared first on Universe Today.
2022-09-27 13:00:02
https://arstechnica.com/?p=1884738 preview's
Ian reaches major hurricane status, will be a historic storm for Florida

Surge, winds, rainfall—unfortunately, Hurricane Ian is going to pack quite a punch.
2022-09-27 09:15:04
https://www.wired.com/story/what-is-a-wetland-worth/ preview's
What Is a Wetland Worth?

As the Supreme Court considers the fate of American wetlands, Annie Proulx’s Fen, Bog, and Swamp offers an elegiac love letter to overlooked ecosystems.
2022-09-27 07:15:02
https://science.slashdot.org/story/22/09/27/0848217/nasas-dart-spacecraft-hits-target-asteroid-in-first-planetary-defense-test?utm_source=rss1.0mainlinkanon&utm_medium=feed preview's
NASA's DART Spacecraft Hits Target Asteroid in First Planetary Defense Test

NASA's DART spacecraft successfully slammed into a distant asteroid at hypersonic speed on Monday in the world's first test of a planetary defense system, designed to prevent a potential doomsday meteorite collision with Earth. From a report: Humanity's first attempt to alter the motion of an asteroid or any celestial body played out in a NASA webcast from the mission operations center outside Washington, D.C., 10 months after DART was launched. The livestream showed images taken by DART's camera as the cube-shaped "impactor" vehicle, no bigger than a vending machine with two rectangular solar arrays, streaked into the asteroid Dimorphos, about the size of a football stadium, at 7:14 p.m. EDT (2314 GMT) some 6.8 million miles (11 million km) from Earth. The $330 million mission, some seven years in development, was devised to determine if a spacecraft is capable of changing the trajectory of an asteroid through sheer kinetic force, nudging it off course just enough to keep Earth out of harm's way. Whether the experiment succeeded beyond accomplishing its intended impact will not be known until further ground-based telescope observations of the asteroid next month. But NASA officials hailed the immediate outcome of Monday's test, saying the spacecraft achieved its purpose. Read more of this story at Slashdot.
2022-09-27 05:00:03
https://science.slashdot.org/story/22/09/26/2248224/experts-call-for-trip-to-venus-before-crewed-mission-to-mars?utm_source=rss1.0mainlinkanon&utm_medium=feed preview's
Experts Call For Trip To Venus Before Crewed Mission To Mars

Noam Izenberg, a researcher at the Johns Hopkins University's applied physics laboratory, is making a case for sending a crewed mission to examine Venus en route to Mars. "Venus gets a bad rap because it's got such a difficult surface environment," said Izenberg in a report presented at the International Astronautical Congress in Paris last week. "The current Nasa paradigm is moon-to-Mars. We're trying to make the case for Venus as an additional target on that pathway." The Guardian reports: There are notable downsides. Walking on the surface would be an unsurvivable experience, so astronauts would have to gaze down at the planet from the safety of their spacecraft in a flyby mission. In its favor, however, Venus is significantly closer, making a return mission doable in a year, compared with a potentially three-year roundtrip to Mars. A flyby would be scientifically valuable and could provide crucial experience of a lengthy deep-space mission as a precursor to visiting Mars, according to a report presented at the International Astronautical Congress (IAC) in Paris last week. Izenberg said there were practical arguments for incorporating a Venus flyby into the crewed Mars landing that Nasa hopes to achieve by the late 2030s. Although the planet is in the "wrong" direction, performing a slingshot around Venus -- known as a gravity assist - could reduce the travel time and the fuel required to get to the red planet. That would make a crewed flyby trip to Venus a natural stepping stone towards Nasa's ultimate goal. "You'd be learning about how people work in deep space, without committing yourself to a full Mars mission," he said. "And it's not just going out into the middle of nowhere -- it would have a bit of cachet as you'd be visiting another planet for the first time." "We need to understand how we can get out of the cradle and move into the universe," he added. There is also renewed scientific interest in Venus. The discovery of thousands of exoplanets raises the question of how many might be habitable, and scientists want to understand how and why Venus, a planet so similar to our own in size, mass and distance from the sun, ended up with infernal surface conditions. Izenberg said a Venus flyby "doesn't yet have traction" in the broader space travel community, although there are advocates within Nasa, including its chief economist, Alexander Macdonald, who led the IAC session. Of course, there are those who push back against such an idea. "It's really not a nice place to go. It's a hellish environment and the thermal challenges for a human mission would be quite considerable," said Prof Andrew Coates, a space scientist at UCL's Mullard space science laboratory. He said Venus was rightly a focus of scientific exploration, but that "a human flyby really wouldn't add very much." Read more of this story at Slashdot.
2022-09-27 03:15:03
https://www.universetoday.com/157792/scientists-in-antarctica-have-access-to-starlink-now-its-available-on-7-continents/ preview's
Scientists in Antarctica Have Access to Starlink Now. It’s Available on 7 Continents

SpaceX’s Starlink service is now available in Antarctica, according to a tweet from the National Science Foundation on the morning of September 14, stating, “NSF-supported USAP scientists in #Antarctica are over the moon! Starlink is testing polar service with a newly deployed user terminal at McMurdo Station. Increasing bandwidth and connectivity for service support.” SpaceX … Continue reading "Scientists in Antarctica Have Access to Starlink Now. It’s Available on 7 Continents" The post Scientists in Antarctica Have Access to Starlink Now. It’s Available on 7 Continents appeared first on Universe Today.
2022-09-27 01:45:02
https://arstechnica.com/?p=1884719 preview's
DART goes silent after hitting an asteroid

Details of the impact aren't yet here, but the probe's last image indicates success.
2022-09-26 20:00:03