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Author: John Wenz

John is a freelance science writer and former associate editor at Astronomy. He lives in Milwaukee with his wife and three cats.
Exoplanets, Science

The most common planets in the universe might be rich in carbon

A portion of the video that highlights the areas of Sif Mons and Niobe Planitia on Venus, where ongoing lava flows have been detected. Credit: IRSPS - Università d'Annunzio.
Science, Solar System

Venus likely has active volcanoes, flowing streams of lava

This is a color illustration of what exoplanet 55 Cancri e might look like. A rocky planet on the left and a portion of a much-larger star on the right. About three-quarters of the lit side of the planet is visible; the other quarter is in shadow. The surface of the planet has gray, orange, and yellow mottling. Most of the orange and yellow is in the region that is facing the star directly. The grayer portions are toward the poles and shadowed side of the planet. The edge of the disc of the planet appears to be glowing, suggesting a thin atmosphere. The star is bright orange-yellow, with a turbulent appearance similar to the Sun."
Exoplanets, Science

At last! JWST finds signs of a thick atmosphere around a rocky exoplanet

An illustration of what Venus might have looked like with large oceans. Credit: NASA.
Science

What happened to all the water on Venus?

An artist's conception of the young Earth being bombarded by asteroids. Scientists think these impacts could have delivered significant amounts of organic matter and water to Earth. Credit: NASA.
Alien Life, Science, Solar System

Evidence grows that meteorites, comets could have brought essentials of life to early Earth

Jupiter's moon Io
Solar System

Jupiter’s moon Io has likely been active for our solar system’s entire history

Europa was captured by JunoCam, during the mission's close flyby on Sept. 29, 2022. The circular dark feature at the lower right is Callanish Crater.
Alien Life, Science, Solar System

Circular patterns on Europa suggest how deep a lively ocean may be

Scientists have found a large black hole that “hiccups,” giving off plumes of gas. Analysis revealed a tiny black hole was repeatedly punching through the larger black hole’s disk of gas, causing the plumes to release. Powerful magnetic fields, to the north and south of the black hole and represented by the orange cone, slingshot the plume up and out of the disk. Each time the smaller black hole punches through the disk, it would eject another plume, in a regular, periodic pattern. Credit: Jose-Luis Olivares, MIT
Exotic Objects, Science

A galaxy’s bright flicker turned out to be two black holes dancing in the night

This artist’s concept shows a planet gradually spiraling into its host star. Credit: R. Hurt & K. Miller (Caltech/IPAC)
Science, Stars

More than a few nearby stars show signs they ate young planets

An artist's conception of the pair of supermassive black holes.
Exotic Objects, Science

These supermassive black holes, equal to 28 billion Suns, are the heaviest ever measured

The Orion nebula as seen by the JWST, appears like a pillowy, colorful, massive cloud of gas and dust.
Science, Stars

JWST data show intense bursts of radiation are vaporizing parts of a young star’s disk in the Orion Nebula

An illustration of the dwarf planets Makemake and Eris.
Alien Life, Science, Solar System

Distant worlds Eris and Makemake unveil surprisingly active natures to the world’s largest space telescope

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