The mysterious yellow skies of WASP-79b

Scientists studying the huge, hot exoplanet WASP-79b have found that, surprisingly, the planet has yellow skies instead of blue. But why it does is still a mystery. Source: https://earthsky.org/space/wasp-79b-exoplanets-atmosphere-rayleigh-scattering…

Update on 2I/Borisov, the first known interstellar comet

The first known interstellar comet – 21/Borisov – probably came here from a red dwarf star, according to a new study of data from the Hubble Space Telescope. Source: https://earthsky.org/space/comet-21-borisov-comets-red-dwarf-stars-hubble-space-telescope…

Was Mercury once habitable?

As unlikely as it may sound, Mercury may have once been able to support subsurface microscopic life, according to a new study from the Planetary Science Institute. Source: https://earthsky.org/space/mercury-habitability-chaotic-terrain-messenger-astrobiology…

New X-Ray Technique Images Soft-Tissue Tumors Clearer Than MRI

Researchers at Tohoku University have developed a new method of adapting X-ray to image soft tissue, “so that its higher resolution can reveal tumors or other problems earlier than other techniques,” reports New Atlas. From the report: Elastography is a field of medical imaging that focuses on the stiffness or softness of tissues. Shear waves are sent through the body, and…

Cosmic rays and Titan’s organic molecules

A new study from researchers in Tokyo helps explain how cosmic rays affect prebiotic organic chemistry in the atmosphere of Saturn’s moon Titan. Source: https://earthsky.org/space/titan-cosmic-rays-atmosphere-prebiotic-organic-chemistry…