JavaScript отключён. Чтобы полноценно использовать наш сайт, включите JavaScript в своём браузере.

Ответить в теме

Сообщение: <blockquote data-quote="Morrissambit" data-source="post: 1016501" data-attributes="member: 85778">Wupp Ceremony honors patriots and POW/MIAsIn a first-of-its-kind collaboration, NASAs Spitzer and Swi <a href="https://www.stanley-quencher.co.uk">stanley quencher</a> ft space telescopes joined forces to observe a microlensing event, when a distant star brightens due to the gravitational field of at least one foreground cosmic object. This technique is useful for finding low-mass bodies orbiting stars, such as planets. In this case, the observations revealed a brown dwarf.Brown dwarfs are thought to be the missing link between planets and stars, with masses up to 80 times that of Jupiter. But their centers are not hot or dense enough to generate energy through nuclear fusion the way stars do. Curiously, scientists have found that, for stars roughly the mass of our sun, less than 1 percent have a brown dwarf orbiting within 3 AU  1 AU is the distance between Earth and the sun . This phenomenon is called the  brown dwarf desert. The newly discovered brown dwarf, which orbits a host star, may inhabit this desert. Spitzer and Swift observed the microlensing event after being tipped off by ground-based microlensing surveys, including the Optical Gravitational Lensing Experiment  OGLE . The discovery of this brown dwarf, with the unwieldy name OGLE-2015-BLG-1319, marks the first time two sp <a href="https://www.cup-stanley.com.de">stanley becher</a> ace telescopes have collaborated to observe a  <a href="https://www.stanley-cup.cz">stanley termoska</a> microlensing event. We want to understand how brown dwarfs form around stars, and why there is a gap in where they are found relative to their host stars,  said Yossi Shvartzvald, a NASA postdoctoral fellow based at NASAs Jet Gtvp NASA: There is No Asteroid Threatening EarthU.S. President Joe Biden delivers remarks on the end of the war in Afghanistan in the State Dining Room at the White House on Aug. 31, 2021 in Washington, D.C.Chip Somodevilla鈥擥etty ImagesIdeasBy Daniel DePetrisAugust 15, 2022 5:59 AM EDTDaniel R. DePetris is a fellow a <a href="https://www.stanley-cups.es">stanley cup spain</a> t Defense Priorities and a foreign affairs columnist at The Spectator.One year ago today, the Taliban, which spent the previous 20 years trying to evict the U.S.-backed Afghan government from power, succeeded in doing just that. With U.S. forces on their way out and Afghan troops struggling to hold off a rapid Taliban advance, the group strolled into Kabul unopposed. President Ashraf Ghani went into exile the same day, and tens of thousands of Afghans who didnrsquo;t have the luxury of their own personal aircraft would rush  <a href="https://www.stanleycups.it">stanley quencher</a> toward Kabul international airport in a desperate attempt to flee.Unsurprisingly, the anniversary of the Talibanrsquo  first year in power has generated a fair share of reflection. The U.S. government is undergoing multiple inter-agency revie <a href="https://www.stanley-cups.uk">stanley water flask</a> ws about what went wrong. But comments from former U.S. commanders of the war deserve particular scrutiny because some still believe the better alternative was to stay. In television appearances and essays, Ret. General David Petraeus, a highly decorated four-star commander who led U.S. forces in Afghanistan during the U.S. troop surge of 2010-2011, insists President Biden should have managed, not quit, the war. Gen. Kenneth McKenzie, who commanded U.</blockquote>

Имя

Проверка