Comparing simulated X-ray emissions from galaxy clusters to real observations provides support for the Standard Model of Cosmology.
A portable spectrometer built using a “lab on a chip”
A mini, portable tool to measure light could improve everything from smartphone cameras to environmental monitoring.
Upper mass limit of massive stars revisited
Physicists at the Gemini Observatory have found a new mass limit for massive stars, and found it to be lower than previously thought.
Largest known comet from Oort Cloud captured by Hubble
Astronomers capture images of a four billion-year-old relic that fell from the theorized Oort Cloud that encircles our Solar System.
Neptune’s unexpectedly cool summer
A compilation of data gathered over the last 20 years shows a surprising drop in global temperatures on Neptune.
Pioneers in Science: John Mather
With the launch of the James Webb Telescope, this edition of Pioneers in Science honors an integral member of its mission: John Mather.
Large impacts created a toxic planet
New research on Venus reveals how large impacts from rocky bodies may have altered its development during planetary infancy.
Scientists identify alien planets that could be observing Earth
An intriguing thought experiment catalogs which of our interstellar neighbors might be gazing back at us.