Shockwaves shake the cosmic web

A simulation of the cosmic web showing shockwaves producing radio waves (pink) as they collide with magnetic fields (blue)

Astronomers have detected huge shockwaves shaking the cosmic web that connects all the galaxies in the universe.

Tycho supernova is a particle accelerator

Tycho supernova remnant, a star that exploded in the constellation of Cassiopeia, whose light was first seen on Earth in 1572. Credit: NASA

A research team has discovered that the Tycho supernova is a cosmic particle accelerator that produces cosmic rays that reach us

A rapidly growing black hole

This Arp 299 system consists of a pair of galaxies, IC 694 and NGC 3690, which underwent a close encounter about 700 million years ago. As a result of this interaction, the system underwent a fierce burst of star formation. In the past fifteen years or so, six supernovae have exploded in the outermost regions of the galaxy, making this system a prominent supernova factory. Credit: NASA

Astronomers have discovered a rapidly growing black hole in one of the most well-known galaxies in the primordial universe

Perseverance completes sample deposit

This image was taken by the WATSON camera on the robotic arm of the Perseverance rover on January 22, 2023, the 684th Martian day, or sol, of the mission. Credit: NASA

Perseverance completes the deposit of Martian samples in the Jazero crater area and is ready for the Mars Sample Return mission.

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