The international collaboration developing the Prime Focus Spectrograph (PFS) has marked a significant testing milestone by successfully taking spectra of targeted stars.
Astronomy
Nov 11, 2022
0
40
All stars are composed of mostly hydrogen and helium, but most stars also have measurable amounts of heavier elements, which astronomers lump into the category of "metals." Our sun has more metals than most stars because ...
Astronomy
Nov 8, 2022
0
100
Using the James Webb Space Telescope (JWST), an international team of astronomers have detected a new faint, distant, and cold brown dwarf. The newly found object, designated GLASS-JWST-BD1, turns out to be about 31 times ...
Atoms are notoriously difficult to control. They zigzag like fireflies, tunnel out of the strongest containers and jitter even at temperatures near absolute zero.
Optics & Photonics
Aug 1, 2022
0
1590
An animated dive into the dusty Milky Way reveals the outlines of our galaxy taking shape as we look out further and further from Earth.
Astronomy
Jul 15, 2022
0
439
Steven Pressfield's 2019 book, "36 Righteous Men," imagined a world where temperatures have risen so high commercial airlines in the Middle East have trouble flying. Neal Stephenson's popular new climate change thriller, ...
Environment
Mar 28, 2022
1
44
While telescope alignment continues, the James Webb Space Telescope's Mid-Infrared Instrument (MIRI) is still in cooldown mode. MIRI, which will be the coldest of Webb's four instruments, is the only instrument that will ...
Space Exploration
Mar 24, 2022
0
80
When the Vera C. Rubin Observatory starts taking pictures of the night sky in a few years, its centerpiece 3,200 megapixel Legacy Survey of Space and Time camera will produce an enormous trove of data valuable to everyone ...
Astronomy
Mar 10, 2022
0
35
Recently, researchers from Shanghai Institute of Optics and Fine Mechanics (SIOM) of the Chinese Academy of Sciences (CAS) have made progress in the angular momentum properties of quantum vortex scattering and the manipulation ...
Optics & Photonics
Jan 31, 2022
0
8
When oxygen masks drop from the airplane ceiling, they're not connected to a big tank of gas. Instead, a chemical reaction supplies oxygen to passengers.
Other
Nov 29, 2021
0
14
