Artist's concept of local void, a huge bubble-like feature in space.

Astronomers map our local cosmic void

Our universe is a tapestry of galaxy congregations and vast voids. An international team of astronomers has now published a new study revealing more of this cosmic structure as it appears surrounding our Milky Way.

When our Milky Way merged with an ancient dwarf galaxy

Analysis of measurements via the Gaia space telescope – of star positions, brightnesses and distances – has let astronomers probe a merger 10 billion years ago between the primitive Milky Way and a dwarf galaxy called Gaia-Enceladus.

A closer look at Io’s weird volcanoes

Io’s volcanoes have fascinated scientists since the Voyager 1 spacecraft first discovered them nearly 40 years ago. Now a comprehensive new report – based on ground-based studies – unveils new mysteries about the most volcanically active world in our solar system.

These 2 dead stars whip around each other in minutes

The newfound dynamic duo of white dwarfs- called ZTF J1539+5027 – orbit each other every 7 minutes.

A mountain on dwarf planet Ceres

Here’s a reconstructed “perspective view” of the tallest mountain on Ceres, which in turn is the largest world in the asteroid belt between Mars and Jupiter. Earthly astronomers call the mountain Ahuna Mons.

Exoplanets in our galaxy.

Check out this cool video map of known exoplanets

This short video, just over a minute long, takes you on a journey from 1991, when no exoplanets were known, to today’s 4,003+ known exoplanets. Why the plus? According to the NASA Exoplanet Archive, the number of known exoplanets has already jumped up to 4,031 and counting!

What does a marsquake feel like?

Quakes look and feel different depending on the material their seismic waves pass through. This new video compares marsquakes to moonquakes and quakes here on Earth.

A blank fuzzy images with 3 red crosses.

ESA and ESO confirm asteroid will miss Earth in September

Asteroid 2006 QV89, a space rock that’ll pass closest to Earth on September 9, will not strike Earth. Details here, including a recent, fortunate non-detection of the asteroid by ESA and ESO.

Mission sequence Chandrayaan-2

Chandrayaan-2 successfully completes 3rd orbit-raising maneuver

India’s 2nd moon mission, Chandrayaan-2, successfully carried out its 3rd orbit-raising maneuver on Monday. It will soon enter trans-lunar orbit, with the goal of landing on the moon on September 7.

Right, a face-on spiral galaxy. Left, artist's concept of black hole and disk.

The black hole disk that shouldn’t exist

Astronomers didn’t expect to see a thin disk around the supermassive black hole at the center of galaxy NGC 3147, some 130 million light-years away. They’re using Einstein’s theories of relativity to understand the velocities involved, and the intensity of the black hole’s pull.