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How to spot the 2023 Perseid meteor shower wherever you are

20 July 2023

The Perseids are a major meteor shower - here is your guide to spotting them in July and August 2023

Two-faced star seems to have one hydrogen side and one helium side

19 July 2023

A strange star more than 1300 light years away appears to have two sides with completely different compositions, and astronomers aren’t sure how it ended up that way

Could we put out the sun with a sun-sized orb of water?

18 July 2023

What would happen if we pushed a sun-sized ball of water into our star? The Dead Planets Society podcast dives into the possibilities

Stars found hidden in huge cloud wrapped around the Milky Way

13 July 2023

The Magellanic stream is a cloud of dust and gas that wraps around our galaxy. It has long been thought to host stars, but they have never been seen until now

Caption The first anniversary image from NASA?s James Webb Space Telescope displays star birth like it?s never been seen before, full of detailed, impressionistic texture. The subject is the Rho Ophiuchi cloud complex, the closest star-forming region to Earth. It is a relatively small, quiet stellar nursery, but you?d never know it from Webb?s chaotic close-up. Jets bursting from young stars crisscross the image, impacting the surrounding interstellar gas and lighting up molecular hydrogen, shown in red. Some stars display the telltale shadow of a circumstellar disk, the makings of future planetary systems. The young stars at the center of many of these disks are similar in mass to the Sun, or smaller. The heftiest in this image is the star S1, which appears amid a glowing cave it is carving out with its stellar winds in the lower half of the image. The lighter-colored gas surrounding S1 consists of polycyclic aromatic hydrocarbons, a family of carbon-based molecules that are among the most common compounds found in space. For more detail on what is happening where in Webb?s image of Rho Ophiuchi, watch the video tour and read the press release. Credits Image NASA, ESA, CSA, STScI, Klaus Pontoppidan (STScI) Image Processing Alyssa Pagan (STScI)

JWST celebrates first year of science with awesome star-forming image

12 July 2023

After a year of producing incredible imagery, the James Webb Space Telescope team has released a picture of the Rho Ophiuchi cloud complex, Earth's closest star-forming region

The 8 most dazzling images from JWST’s first year of science

12 July 2023

The James Webb Telescope revealed its first images of deep space on July 12 2022 – here’s a look back at one year of awe-inspiring images and confounding scientific discoveries

https://www.esa.int/ESA_Multimedia/Images/2017/07/Exploring_Jupiter t may still be some years away from launch, and over a decade before our Jupiter Icy Moons Explorer reaches the gas giant and its icy moons, but preparations are well under way. This new artist?s impression depicts the final spacecraft design, the construction of which is being overseen by Airbus Defence and Space. The spacecraft?s solar wings form a distinctive cross-shape totalling 97 sq m, the largest ever flown on an interplanetary mission. The size is essential to generate sufficient power ? around 850 W ? for the instruments and spacecraft so far from the Sun. The spacecraft is furnished with a laboratory of instruments that will investigate Jupiter?s turbulent atmosphere and vast magnetosphere, as well as study the planet-sized moons Ganymede, Europa and Callisto. All three moons are thought to have oceans of liquid water beneath their icy crusts and should provide key clues on the potential for such moons to harbour habitable environments. Juice?s cameras will capture exquisite details of the moon?s features, as well as identify the ices and minerals on their surfaces. Other instruments will sound the subsurface and interior of the moons to better understand the location and nature of their buried oceans. The tenuous atmosphere around the moons will also be explored. The spacecraft will also include booms such as a 10 m-long magnetometer mast (seen towards the bottom of Juice in the artist impression), a 16 m radar antenna (the long boom across the top), and antennas to measure electric and magnetic fields. Ganymede is the only moon in the Solar System to generate its own internal magnetic field, and Juice is well equipped to document its behaviour and explore its interaction with Jupiter?s own magnetosphere. Juice is scheduled for launch in 2022 on a seven-year journey to the Jovian system. Its tour will include a dedicated orbit phase of Jupiter, targeted flybys of Europa, Ganymede and Callisto, and finally nine months orbiting Ganymede ? the first time any moon beyond our own has been orbited by a spacecraft. In the artist?s impression, which is not to scale, Ganymede is shown in the foreground, Callisto to the far right, and Europa centre-right. Volcanically active moon Io is also shown, at left. The moons were imaged by NASA?s Galileo spacecraft; Jupiter is seen here with a vivid aurora, captured by the NASA/ESA Hubble Space Telescope. ESA/ATG medialab; Jupiter: NASA/ESA/J. Nichols (University of Leicester); Ganymede: NASA/JPL; Io: NASA/JPL/University of Arizona; Callisto and Europa: NASA/JPL/DLR

How to spot Jupiter's icy moons

5 July 2023

Jupiter’s Galilean moons are promising places to look for life. Now is a great time to see them, says Abigail Beall

Solar Flare X1 from AR2994 in ?Motion? ? Miguel Claro Photograph of the Sun taken from a 27-minute timelapse of a solar, flare which took place on 30 April 2022. Taken with a Sky-Watcher Esprit ED120 telescope, Daystar Quark Chromosphere filter, Sky-Watcher EQ6 mount, Player One Apollo M-Max Solar camera, 840 mm, 900 frames at 9.1 ms per frame (recorded as video at 109 FPS) Location: Dark Sky Alqueva region, ?vora district, Portugal

See the remarkable photos up for Astronomy Photographer of the Year

5 July 2023

From a solar flare to the Jellyfish Nebula, these are some of the photographs in the running for the annual competition organised by the Royal Observatory in London, UK

The Milky Way could contain thousands of stars from another galaxy

22 June 2023

We know there are stars moving fast enough to escape the Milky Way, so the same is probably true of other galaxies. Now, simulations suggest there could be almost 4000 stars from the Andromeda galaxy in the Milky Way today