Astrophysicist explains the Universe

In most materials, the way heat is absorbed and the way it is emitted are inseparable. If a surface absorbs heat efficiently from a particular direction or wavelength, it also emits heat the same way. This long established principle, known as reciprocity, has made it difficult for scientists to independently control how thermal energy enters…

submitted by /u/EchoOfOppenheimer [comments]

NASA’s James Webb Space Telescope takes us 4.4 billion years in the past with this July 3, 2026, image of a young galaxy cluster, MACS J0553.4-3342. The cluster is composed of two actively merging sub-clusters, roughly equal in mass. Each sub-cluster is anchored on an immensely bright and massive elliptical galaxy, easily identifiable as the…

WASHINGTON — The Defense Innovation Unit is seeking commercial proposals to beam electrical power between spacecraft and from orbit to the ground in a demonstration within two years, an effort to move a long-studied technology toward operational military use by the end of the decade. The Defense Innovation Unit, or DIU, is asking companies to…

In the course of studying planets beyond our Solar System (6,316 confirmed exoplanets and counting), scientists have discovered some very interesting systems. Consider TOI-201, a compact system populated by three bodies, including a brown dwarf, orbiting on the same plane. The system was recently observed by an international team led by the European Southern Observatory(ESO)…

Key Takeaways for What is Ozempic Breath? Ozempic breath is on the rise as GLP-1 drugs have been linked to a surge in bad-breath complaints. Dry mouth and acid reflux may be driving “Ozempic breath.” Persistent bad breath could signal a larger dental problem that should not be ignored. Executives at The Hershey Company shared…