Seen edge-on, spiral galaxy NGC 4302 (left) lies about 55 million light-years away in the well-groomed constellation Coma Berenices. A member of the large Virgo Galaxy Cluster, it spans some 87,000 light-years, a little smaller than our own Milky Way. Like the Milky Way, NGC 4302's prominent dust lanes cut along the center of the galactic plane, obscuring and reddening the starlight from our perspective. Smaller companion galaxy NGC 4298 is also a dusty spiral.
But tilted more nearly face-on [...]
Two new crew members are aboard the International Space Station. The hatches on the space station and Soyuz MS-04 opened at 11:25 a.m. EDT, marking the arrival to the orbiting laboratory for NASA astronaut Jack Fischer and Fyodor Yurchikhin of the Russian space agency Roscosmos.
Along with Expedition 51 Commander Peggy Whitson of NASA and Flight Engineers Oleg Novitskiy of Roscosmos and Thomas Pesquet of ESA (European Space Agency), the arriving crew members will contribute to more than 250 r [...]
A day before its closest approach, asteroid 2014 JO25 was imaged by radar with the 70-meter antenna of NASA's Goldstone Deep Space Communications Complex in California. This grid of 30 radar images, top left to lower right, reveals the two-lobed shape of the asteroid that rotates about once every five hours. Its largest lobe is about 610 meters across.
On the list of Potentially Hazardous Asteroids, this space rock made its close approach to our fair planet on April 19, flying safely past at [...]
As NASA's Dawn spacecraft continues exploring Ceres, evidence mounts that the enigmatic dwarf planet retains a significant amount of water ice. A new study in the journal Nature Geoscience adds to this picture, showing how ice may have shaped the variety of landslides seen on Ceres today.
"Images from Dawn show that landslides, many of which are similar to those seen on Earth, are very common on Ceres, and further the case that Ceres has a lot of water ice involved in its structure," said Bri [...]
Two Expedition 51 crew members are in quarantine today at the Cosmonaut Hotel in Baikonur, Kazakhstan, getting ready for their liftoff Thursday morning. Meanwhile, new science gear and crew supplies are on orbit right now and headed for the International Space Station this weekend.
Cosmonaut Fyodor Yurchikhin is getting ready for his fifth mission to the space station on Thursday. He will ride to space with NASA astronaut and first-time space flier Jack Fischer aboard the Soyuz MS-04 spacecra [...]
Transiting rocky super-Earth found in habitable zone of quiet red dwarf star.
An exoplanet orbiting a red dwarf star 40 light-years from Earth may be the new holder of the title “best place to look for signs of life beyond the Solar System”. Using ESO’s HARPS instrument at La Silla, and other telescopes around the world, an international team of astronomers discovered a “super-Earth” orbiting in the habitable zone around the faint star LHS 1140. This world is a little larger and muc [...]
Oh what a tangled web a planetary nebula can weave. The Red Spider Planetary Nebula shows the complex structure that can result when a normal star ejects its outer gases and becomes a white dwarf star. Officially tagged NGC 6537, this two-lobed symmetric planetary nebula houses one of the hottest white dwarfs ever observed, probably as part of a binary star system.
Internal winds emanating from the central stars, visible in the center, have been measured in excess of 1000 kilometers per seco [...]