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astronomy

First image of black hole. Wormhole in deep space. Messier 87. Elements of this image furnished by NASA; Shutterstock ID 1366204970; purchase_order: -; job: -; client: -; other: -

Space

Astronomers question if the first picture of a black hole is accurate

The Event Horizon Telescope’s first image of a black hole showed a distinctive ring feature, but a reanalysis of their data has raised concerns over whether that ring of light is real

News

Image of the broken fragments surrounding Fragment B of Comet 73P/Schwassmann-Wachmann 3 observed with FORS1 on ESO's VLT in four filters (B, V, R, and I). As the telescope was tracking the comet, the stars appear as coloured trails, indicating the order in which the comet was observed in the different filters. North is up and East is to the left.

Space

Watch out for comet SW3, which might cause a meteor shower in late May

Regulars

This image shows the Atacama Large Millimeter/submillimeter Array (ALMA) looking up at the Milky Way as well as the location of Sagittarius A*, the supermassive black hole at our galactic centre. Highlighted in the box is the image of Sagittarius A* taken by the Event Horizon Telescope (EHT) Collaboration. Located in the Atacama Desert in Chile, ALMA is the most sensitive of all the observatories in the EHT array, and ESO is a co-owner of ALMA on behalf of its European Member States.

Space

What's next for Event Horizon Telescope after its black hole pictures?

News

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.

Space

Small explosions called micronovae discovered on dead stars

News

Why I'm choosing dark matter over dark energy - for now at least

Space

Why I'm choosing dark matter over dark energy - for now at least

Comment

The FRAMe Project functional model in comparison to the Fragment A visual and the AMRP X-Ray images. The central large gear-b1 with the four arms is visible. The Fragments of the Mechanism are exhibited in National Archaeological Museum of Athens, Greece.

Space

Ancient computer may have had its clock set to 23 December 178 BC

News

HD1, object in red, appears at the center of a zoom-in image.

Space

Astronomers have found what may be the most distant galaxy ever seen

News

image of message to extra terrestrials

Space

Scientists want to play chess with aliens as soon as we can find them

News

The most distant star ever discovered seen by Hubble Space Telescope

Video

The most distant star ever discovered seen by Hubble Space Telescope

Video

early universe

Space

Furthest star ever seen offers glimpse 12.8 billion years into past

A star in a galaxy that is now more than 27 billion light years away may allow us to understand the very first stars after the big bang

News

Video

What are odd radio circles?

Video

Space

Odd radio circles in space may come from black holes at their centres

News

Space

The James Webb Space Telescope has sent back its clearest image yet

News

Space

Double-shadowed moon craters may be coldest place in the solar system

News

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