Astronomy

Centuries before other galaxies were known to exist, astronomers called them “spiral nebulas.” Today the defunct term still sparks confusion

From COVID shots to cancer therapy, mRNA is changing medicine.

Saturn's rings are turning as edge-on as we will see them for another 15 years. The planet awaits your scope high in the evening sky. Low in the dawn, the thin Moon approaches Venus.

The post This Week's Sky at a Glance, November 14 – 23 appeared first on Sky & Telescope.

Physics has a reputation for being dominated by men, especially a century ago, as quantum physics was just being invented – but there have been so many women who helped shaped the field since its inception

Physics has a reputation for being dominated by men, especially a century ago, as quantum physics was just being invented – but there have been so many women who helped shaped the field since its inception

Since comet 3I/ATLAS, the third known interstellar object, was discovered on 1 July 2025, astronomers worldwide have worked to predict its trajectory. ESA has now improved the comet’s predicted location by a factor of 10, thanks to the innovative use of observation data from our ExoMars Trace Gas Orbiter (TGO) spacecraft orbiting Mars.

Image: This very high-resolution image captures the beautiful medieval core of the Czech capital, Prague.

A small but unique mission to Mars is taking an innovative path to reach the Red Planet in late 2027.

The post ESCAPADE Mission Launches for a Long Trip to Mars appeared first on Sky & Telescope.

A research team has conducted the first systematic search for optical counterparts to a neutrino "multiplet," a rare event in which multiple high-energy neutrinos are detected from the same direction within a short period. The event was observed by the IceCube Neutrino Observatory, a massive detector buried deep within the Antarctic ice.

After delays, Jeff Bezos’s rocket company successfully launched a NASA mission to study Mars on Thursday

The 57.7-foot-long Canadarm2 robotic arm extends from a data grapple fixture on the International Space Station’s Harmony module in this July 23, 2025, image.

Is Saturn's moon Enceladus habitable? There's ample evidence that the moon holds a warm ocean underneath its frozen surface, and that the building blocks of life are present in that ocean. But for life to arise and persist, the ocean needs to sustain itself for a long time, and new research shows that's exactly what's happening.

Nearly two million U.S. turkeys have died from bird flu in recent months. An agricultural economist explains what ongoing outbreaks could mean for Thanksgiving meals

A surprising diversity of dog shapes and sizes evolved long before the Victorians began making modern breeds

A trove of e-mails from convicted sex offender Jeffrey Epstein was released by a congressional committee on Wednesday

New evidence suggests the standard model of cosmology is wrong, but the results could resolve the long-standing Hubble Tension problem in modern cosmology.

The milestone makes machine-learning trailblazer Yoshua Bengio the most cited researcher on Google Scholar

After studying mice in the 1910s, Maude Slye concluded that vulnerability to cancer was hereditary. She thought she had a solution to eliminate it, but she made some crucial mistakes

Oceanographers hope to find otherworldly ecosystems at hydrothermal vents on the Arctic seafloor

Iron rusts. On Earth, this common chemical reaction often signals the presence of something far more interesting than just corroding metal for example, living microorganisms that make their living by manipulating iron atoms. Now researchers argue these microbial rust makers could provide some of the most promising biosignatures for detecting life on Mars and the icy moons of the outer Solar System.