The Lomonosov Moscow State University scientists published the results of a study of the unique ultra-slow pulsar XB091D. This neutron star is believed to have captured a companion only a million years ago and since then, has been slowly restoring its rapid rotation. The young pulsar is located in one of the oldest globular star clusters in the Andromeda galaxy, where the cluster may once have been a dwarf galaxy.
Tuesday, April 25, 2017
The solar flux is considered the fundamental energy source of earth's climate system on long time scales. In recent decades, some studies have noted that the tiny variations in solar activity could be amplified by the nonlinear process in climate system. Therefore, the astronomy factors, such as solar activity, present intriguing and cutting-edge questions to better understand climate change.
Monday, April 24, 2017
In a paper published today in Nature Physics, the ALICE collaboration reports that proton collisions sometimes present similar patterns to those observed in the collisions of heavy nuclei. This behavior was spotted through observation of so-called strange hadrons in certain proton collisions in which a large number of particles are created.
New data from NASA’s Cassini mission, combined with measurements from the two Voyager spacecraft and NASA’s Interstellar Boundary Explorer, or IBEX, suggests that our sun and planets are surrounded by a giant, rounded system of magnetic field from the sun — calling into question the alternate view of the solar magnetic fields trailing behind the sun in the shape of a long comet tail.
Sunday, April 23, 2017
In the beginning of 2017, a team of researchers has presented the first observational evidence that our universe could be a hologram. In a paper published Jan. 27 in the journal Physical Review Letters, the scientists described their tests of a class of holographic models for the very early universe against cosmological observations. It now turns out that the most challenging part of this study was to compute the observables and compare them with observations.
After a four-day cruise to the International Space Station, Orbital ATK’s OA-7 Cygnus spacecraft, named S.S. John Glenn, was captured and berthed to the outpost. Capture of the 21-foot (6.4-meter) long spacecraft by the station’s robotic Canadarm2 came at 6:05 a.m. EDT (10:05 GMT) April 22, 2017. Expedition 51 Flight Engineer Thomas Pesquet of the European Space Agency as well as Commander Peggy Whitson of NASA were at the Robotics Work Station in the Cupola window controlling the arm.
The Tianzhou-1 cargo spacecraft successfully completed automated docking with the orbiting Tiangong-2 space lab at 12:23 p.m. Saturday, according to Beijing Aerospace Control Center. It is the first docking between the spacecraft and space lab.