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Found 393 results for dwarf planet
The telescopes of the SPECULOOS Southern Observatory gaze out into the stunning night sky over the Atacama desert in Chile

Two potentially habitable super-Earth planets have been discovered

7 September 2022

A pair of rocky planets orbiting the star LP 890-9, also known as SPECULOOS 2, seem likely to be in the habitable zone and one of them could be the second most habitable exoplanet discovered so far
This side-by-side comparison shows observations of the Southern Ring Nebula in near-infrared light, at left, and mid-infrared light, at right, from NASA???s Webb Telescope. This scene was created by a white dwarf star ??? the remains of a star like our Sun after it shed its outer layers and stopped burning fuel though nuclear fusion. Those outer layers now form the ejected shells all along this view. In the Near-Infrared Camera (NIRCam) image, the white dwarf appears to the lower left of the bright, central star, partially hidden by a diffraction spike. The same star appears ??? but brighter, larger, and redder ??? in the Mid-Infrared Instrument (MIRI) image. This white dwarf star is cloaked in thick layers of dust, which make it appear larger. The brighter star in both images hasn???t yet shed its layers. It closely orbits the dimmer white dwarf, helping to distribute what it???s ejected. Over thousands of years and before it became a white dwarf, the star periodically ejected mass ??? the visible shells of material. As if on repeat, it contracted, heated up ??? and then, unable to push out more material, pulsated. Stellar material was sent in all directions ??? like a rotating sprinkler ??? and provided the ingredients for this asymmetrical landscape. Today, the white dwarf is heating up the gas in the inner regions ??? which appear blue at left and red at right. Both stars are lighting up the outer regions, shown in orange and blue, respectively. The images look very different because NIRCam and MIRI collect different wavelengths of light. NIRCam observes near-infrared light, which is closer to the visible wavelengths our eyes detect. MIRI goes farther into the infrared, picking up mid-infrared wavelengths. The second star more clearly appears in the MIRI image, because this instrument can see the gleaming dust around it, bringing it more clearly into view. The stars ??? and their layers of light ??? steal more attention in the NIRCam image, while dust pl

James Webb Space Telescope releases dazzling first science images

12 July 2022

Incredibly clear images of the Carina Nebula, the Eight-Burst Nebula, a galaxy cluster called Stephan’s Quintet and an exoplanet named WASP-96b make up the first set of science data from JWST
7 big questions the James Webb Space Telescope is about to answer

7 big questions the James Webb Space Telescope is about to answer

6 July 2022

NASA has just released the first full-colour image from the James Webb Space Telescope. Here’s what it is looking at first – and how it will address the biggest mysteries of the universe
New Scientist Default Image

Trying to pin down a planet is pointless

27 April 2022
This artist???s impression shows a two-star system where micronovae may occur. The blue disc swirling around the bright white dwarf in the centre of the image is made up of material, mostly hydrogen, stolen from its companion star. Towards the centre of the disc, the white dwarf uses its strong magnetic fields to funnel the hydrogen towards its poles. As the material falls on the hot surface of the star, it triggers a micronova explosion, contained by the magnetic fields at one of the white dwarf???s poles.

Small explosions called micronovae discovered on dead stars

20 April 2022

Micronovae are about 1 million times less bright than a classical nova and last just half a day, but they release as much energy as the sun would in a day
An artist?s impression of the white dwarf star WD1054?226 orbited by clouds of planetary debris and a major planet in the habitable zone.

First hints of a planet orbiting in a white dwarf’s habitable zone

11 February 2022

Astronomers have found 65 evenly spaced rocks orbiting a white dwarf star in its habitable zone, hinting that a planet’s gravity may be holding them there
Proxima d

Tiny exoplanet Proxima d is third spotted in nearest star system to us

10 February 2022

A star system just 4.2 light years away called Proxima Centauri is already known to contain two exoplanets, and now astronomers have spotted a third
How to Mars review: Sci-fi satire about reality TV on the Red Planet

How to Mars review: Sci-fi satire about reality TV on the Red Planet

4 August 2021

How to Mars by David Ebenbach is an amusing novel about a failed attempt at reality TV on Mars. It is a new twist on the genre, says Clare Wilson
NASA’s Ingenuity Mars helicopter photographed by the Perseverance rover on April 5

NASA is about to fly a helicopter on another planet for the first time

8 April 2021

The Ingenuity helicopter, which hitched a ride to Mars aboard NASA’s Perseverance rover, is getting ready to perform its first test flight on 12 April
11 of the best sci-fi books that transport you to another world

11 of the best sci-fi books that transport you to another world

5 October 2020

All Systems Red by Martha Wells, Red Mars by Kim Stanley Robinson and The Left Hand of Darkness by Ursula K. Le Guin all make our list of best sci-fi escapism

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