Topic description and stories

Millimetre continuum images for the REASONS resolved sample of 74 exocomet belts

Scientists reveal structure of 74 exocomet belts orbiting nearby stars

17 Jan 2025

An international team of astrophysicists has imaged a large number of exocomet belts around nearby stars, and the tiny pebbles within them.

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An iron meteorite from the core of a melted planetesimal (left) and a chondrite meteorite, derived from a ‘primitive’, unmelted planetesimal (right).

How did the building blocks of life arrive on Earth?

11 Oct 2024

Researchers have used the chemical fingerprints of zinc contained in meteorites to determine the origin of volatile elements on Earth. The results...

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Artist's impression of the surroundings of the supermassive black hole in NGC 3783

Neon sign identified by JWST gives clue to planet formation

05 Mar 2024

The winds that help to form planets in the gaseous discs of early solar systems have been imaged for the first time by the James Webb Space Telescope...

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Water worlds

Scientists have new tool to estimate how much water might be hidden beneath a planet’s surface

15 Mar 2023

In the search for life elsewhere in the Universe, scientists have traditionally looked for planets with liquid water at their surface. But, rather...

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ALMA image of the protoplanetary disc around HL Tauri

Astronomers use ‘little hurricanes’ to weigh and date planets around young stars

06 Jan 2023

Little ‘hurricanes’ that form in the discs of gas and dust around young stars can be used to study certain aspects of planet formation, even for...

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Artist's impression of planet formation

Study of ‘polluted’ white dwarfs finds that stars and planets grow together

14 Nov 2022

A team of astronomers have found that planet formation in our young Solar System started much earlier than previously thought, with the building...

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False-colour image of impact recrystallised phosphate mineral in Chelyabinsk meteorite

Microscopic view on asteroid collisions could help us understand planet formation

24 Feb 2022

A new way of dating collisions between asteroids and planetary bodies throughout our Solar System’s history could help scientists reconstruct how and...

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Magma ocean and first rocky crust on the Moon

‘Slushy’ magma ocean led to formation of the Moon’s crust

13 Jan 2022

Scientists have shown how the freezing of a ‘slushy’ ocean of magma may be responsible for the composition of the Moon’s crust.

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Artist’s impression of the planet around Alpha Centauri B

Astronomers show how planets form in binary systems without getting crushed

27 Jul 2021

Astronomers have developed the most realistic model to date of planet formation in binary star systems.

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Artist's impression of the protoplanetary disk with magnetic field lines

Astronomers identify new method of planet formation

12 Feb 2021

Scientists have suggested a new explanation for the abundance in intermediate-mass exoplanets – a long-standing puzzle in astronomy.

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Planets similar to Jupiter are likely able to form on orbits shorter than the Earth’s

15 Jul 2016

After analyzing four years of Kepler space telescope observations, astronomers from the University of Toronto, and of the University of Cambridge...

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