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STEREO-A has been on the far side of the sun since March 24, where it had to operate in safe mode, collecting and saving data from its radio instrument. The first images in over three months were received from STEREO-A on July 11. The three-month safe mode period was necessary because of the geometry between Earth, the sun, and STEREO-A. STEREO-A orbits the sun as Earth does, but in a slightly smaller and faster orbit. The orbit ensured that over the course of years, Earth and the spacecraft got out of sync, with STEREO-A ending up on the other side of the sun from Earth, where it could show us views of our star that we couldnt see from home. Though
borraccia stanley the sun only physically blocked STEREO-A from Earths line of sight for a few days, STEREO-A was close enough to the sun鈥攆rom our perspective 鈥?that from March 24 until July 8, the sun interfered with STEREO-As data transmission signal, making it impossible to interpret. As STEREO-A kept orbiti
bidon stanley ng, it eventually made its way far enough from the sun to come out of this transmission dark zone. In late June, the STEREO-A team began receiving status updates fro
stanley france m the spacecraft, confirming that it had made it through its long safe-mode journey unharmed. [NASA] NASASpace Daily Newsle Aaja Help a Fellow Giz Reader Achieve His American Dream
I looked at the data and was shocked 鈥?the 鈥?star had suddenly slowed down, stated Rob Archibald, a graduate student at McGill University in Montreal. These stars are not supposed to behave this way. Archibald led a group that was observing a neutron star, a type of really, really dense object created after huge stars run out of gas and collapse. The studied star called 1E 2259+586, if youre curious has a massive magnetic field that places it in a subcategory of neutron stars called magnetars. Anyway, the astronomers were watching over the magnetar with the NASA Swift X-ray telescope, just to get a sense of the stars rotation and also to keep an eye out for the odd X-ray explosion commonly seen in stars of this type. But to see its spin rate reduce 鈥?that was definitely something unexpected. An artistic impression of a magnetar with a very complicated magnetic field at its interior and a simple small dipolar field outside. Credits: ESA 鈥?Author: Christophe Carreau Previous neutron sta
stanley quencher r observations have showed them suddenly rotating faster as if spinning up to several hundred times a second wasnt enough. This maneuver is called a glitch, and is thought to happen because the neutron has some sort of fluid
stanley mug sometimes called a superfluid inside that drives the rotation. So now, the astronomers had evidence of an anti-glitch , a star slowing down instead of speeding up. It wasnt by much just a third of a part per million in the seven-second rotation rate ,
stanley becher but while i
