Is the universe the greatest mystery of all? Analysis of a planet 205 trillion miles from Earth has shown it to be different from every other kind that we know about.
Astronomers find ‘hellish’ lava planet
Sulphurous surprise: Astronomers once thought planet L98-59d was a watery paradise, but new data reveals a hellish world of magma oceans and the stench of rotten eggs. Glossary
Light years - A unit of measurement equal to the distance that light travels in one year, which is 9.4607 times 1012 km. That's nearly 6 million million miles!
James Webb Space Telescope - A high resolution space telescope that overtook the capabilities of the Hubble telescope. It was launched in December 2021.
Magma - Molten or partly molten rock beneath the Earth’s surface. Magma that reaches the surface of the Earth is called lava.
Habitable - Suitable for life.
Dark matter - A hypothetical substance that can not be detected by scientific instruments. Its existence is inferred from evidence that the universe consists of more mass than we can perceive.