A study led by the University of Oxford has identified a new type of planet beyond our solar system—one that stores large amounts of sulfur deep within a permanent ocean of magma. The findings have been published in Nature Astronomy.

The exoplanet (a planet that orbits a star outside the solar system), known as L 98–59 d, orbits a small red star about 35 light-years from Earth. Recent observations from the James Webb Space Telescope (JWST) and ground-based observatories suggest something unusual: the planet has an especially low density, given its size (which is about 1.6 times that of Earth) and contains significant amounts of hydrogen sulfide in its atmosphere.

Until now, astronomers would have placed a planet like this into one of two familiar categories, either a rocky “gas-dwarf” with an atmosphere of hydrogen, or a water-rich world made of deep oceans and ice. But these new findings reveal that L 98–59 d fits neither description—instead, it appears to belong to an entirely different class of planet containing heavy sulfur molecules.

NASA’s DART mission proved that a spacecraft can nudge an asteroid system in space, offering a real test of planetary defense. NASA’s DART (Double Asteroid Redirection Test) spacecraft changed the motion of an asteroid system in space, demonstrating that a kinetic impactor could be a viable way t

Oxygen isotope analysis of lunar soil shows meteorites delivered only a limited amount of water to the Earth–Moon system after about 4 billion years ago.

Our view of the cosmos changes completely based on how we observe it.

Now, astronomers have released the data from the largest-ever sky survey at radio wavelengths, revealing nearly 13.7 million celestial objects in light the human eye literally cannot see unaided.

This is the third data release from the LOFAR Two-metre Sky Survey (LoTSS-DR3). It provides an unprecedented collection of cosmic objects that emit radio waves.

In this clip, physicist Michio Kaku explains to Joe Rogan why the strange behavior of Tabby’s Star briefly led scientists to consider something extraordinary.

Planets usually block less than 1% of a star’s light.
Even Jupiter would block about 1%.
But Tabby’s Star dimmed by nearly 20% — something astronomers had never seen before.

Because of that extreme and unusual dimming, some scientists explored whether an intelligent megastructure — like a Dyson sphere built by a Type II civilization on the Kardashev Scale — could explain the observations.

This video focuses on *why the idea was considered*, not a confirmed conclusion.