Powerful cosmic explosion could be a new class of event

A powerful cosmic explosion - named EP240408a - might be a jetted tidal disruption, or perhaps it's something completely new! More here.

The mass of a star is determined from binary star systems

Binary stars - a star system consisting of two stars - are extremely useful. They give all the information needed to measure mass of a star. Here is how.

Using exploding white dwarfs to measure the universe

The Rubin Observatory will find millions of exploding white dwarfs, or Type Ia supernovae. Astronomers can use them to measure the universe and dark energy.

Sirius is a future southern Pole Star

Wait, what? It's true. The sky's brightest star, Sirius aka the Dog Star, will come to within 1.6 degrees of the south celestial pole in the year 66270.

A filament of the cosmic web! Clearest image yet

A new image from ESO's Very Large Telescope provides what these astronomers called "our clearest view yet" of a filament in the cosmic web.

Cascade volcanoes still have large pools of magma

Researchers have used seismometers to discover pools of lava sitting under dormant Cascade volcanoes in the Pacific Northwest.

Juno spots most extreme volcanic activity on Io to date

On a recent flyby, the Juno spacecraft spotted intense volcanic activity on Io, one of Jupiter's moons. It was more extreme than any volcanism ever seen on Io.

New Blue Marble image from Blue Ghost spacecraft

The Blue Ghost lunar spacecraft, flown by Firefly Aeronautics for NASA, took this "Blue Marble" picture of Earth from orbit around our planet.

A super-Venus exoplanet (with a watery name)

Astronomers thought that exoplanet GJ 1214 b was either a watery super-Earth or a mini-Neptune. But a new study says it is more like a super-Venus exoplanet.

New images of exocomet belts around 74 nearby stars

The new REASONS survey has found exocomet belts around 74 nearby stars. The images reveal a wide variety of comet belt appearances and ages. Find out more.