The COSMOS Legacy Survey shows data that have provided evidence for the existence of intermediate-mass black holes (IMBHs). Credits: X-ray: NASA/CXC/ICE/M.Mezcua et al.; Infrared: NASA/JPL-Caltech; Illustration: NASA/CXC/A.Hobart

Finding the Happy Medium of Black Holes

Finding the Happy Medium of Black Holes Scientists have taken major steps in their hunt to find black holes that are neither very small nor…

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These simulated views of the ultrahot Jupiter WASP-121b show what the planet might look like to the human eye from five different vantage points, illuminated to different degrees by its parent star. The images were created using a computer simulation being used to help scientists understand the atmospheres of these ultra-hot planets. Ultrahot Jupiters reflect almost no light, rather like charcoal. However, the daysides of ultrahot Jupiters have temperatures of between 3600°F and 5400°F (2000°C and 3000°C), so the planets produce their own glow, like a hot ember. The orange color in this simulated image is thus from the planet's own heat. The computer model was based on observations of WASP-121b conducted using NASA's Spitzer and Hubble space telescopes. Credits: NASA/JPL-Caltech/Vivien Parmentier/Aix-Marseille University (AMU)

Water Is Destroyed, Then Reborn in Ultrahot Jupiters

Water Is Destroyed, Then Reborn in Ultrahot Jupiters Imagine a place where the weather forecast is always the same: scorching temperatures, relentlessly sunny, and with…

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The US wants a ‘Space Force’ to be the sixth branch of the US military. Shutterstock/Carlos Romero

The US plan for a Space Force risks escalating a ‘space arms race’

The US plan for a Space Force risks escalating a ‘space arms race’ The US wants a ‘Space Force’ to be the sixth branch of…

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A firefighter runs after trying to save a home in Lakeport, California, suffering its biggest fires ever. AP Photo/Noah Berger

Climate change and wildfires – how do we know if there is a link?

Climate change and wildfires – how do we know if there is a link? A firefighter runs after trying to save a home in Lakeport, California,…

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A composite image of Olympus Mons on Mars, the tallest known volcano and mountain in the Solar System. Author: NASA

I’ve Always Wondered: Why are the volcanoes on Earth active, but the ones on Mars are not?

I’ve Always Wondered: Why are the volcanoes on Earth active, but the ones on Mars are not? Helen Maynard-Casely, Australian Nuclear Science and Technology Organisation…

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Illustration of Pioneer Venus Multiprobe approaching Venus. Image credit: NASA/ Paul Hudson

40 Years Ago, Pioneer Venus Multiprobe Launched to Study the Cloud-Shrouded Planet Venus

40 Years Ago, Pioneer Venus Multiprobe Launched to Study the Cloud-Shrouded Planet Venus On August 8, 1978, the Pioneer Venus Multiprobe spacecraft launched to study…

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New observations with ESO’s Very Large Telescope show the star cluster RCW 38 in all its glory. This image was taken during testing of the HAWK-I camera with the GRAAL adaptive optics system. It shows the cluster and its surrounding clouds of brightly glowing gas in exquisite detail, with dark tendrils of dust threading through the bright core of this young gathering of stars. Credit: ESO/K. Muzic

Colourful Celestial Landscape

Colourful Celestial Landscape New observations with ESO’s Very Large Telescope show the star cluster RCW 38 in all its glory. This image was taken during…

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This spectacular image from the SPHERE instrument on ESO's Very Large Telescope is the first clear image of a planet caught in the very act of formation around the dwarf star PDS 70. The planet stands clearly out, visible as a bright point to the right of the centre of the image, which is blacked out by the coronagraph mask used to block the blinding light of the central star. Credit: ESO/A. Müller et al.

First Confirmed Image of Newborn Planet Caught with ESO’s VLT

First Confirmed Image of Newborn Planet Caught with ESO’s VLT SPHERE, a planet-hunting instrument on ESO’s Very Large Telescope, has captured the first confirmed image…

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taken on July 25 by the Transiting Exoplanet Survey Satellite. The angular extent of the widest field of view is six degrees. Visible in the images are the comet C/2018 N1, asteroids, variable stars, asteroids and reflected light from Mars. TESS is expected to find thousands of planets around other nearby stars. Credit: Massachusetts Institute of Technology/NASA’s Goddard Space Flight Center

NASA’s Planet-Hunting TESS Catches a Comet Before Starting Science

NASA’s Planet-Hunting TESS Catches a Comet Before Starting Science Before NASA’s Transiting Exoplanet Survey Satellite (TESS) started science operations on July 25, 2018, the planet…

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