Is life hiding beneath thick hydrogen skies on distant alien planets? NASA’s James Webb Space Telescope (JWST) might be closer than ever to answering that question—thanks to a unique type of exoplanet known as a hycean world. These mysterious planets could provide our best shot at detecting alien life, not with oxygen, but with something … Read more
Planets are born in swirling disks of gas and dust around young stars. Astronomers are keenly interested in the planet formation process, and understanding that process is one of the JWST’s main science goals. PDS 70 is a nearby star with two nascent planets forming in its disk, two of the very few exoplanets that … Read more
The JWST was never intended to find asteroids. It was built to probe some of our deepest, most demanding questions about the cosmos: how the first stars formed, how galaxies have evolved, how planets like ours take shape, and even how life originated. However, it’s first and foremost a powerful infrared telescope and its unrivalled … Read more
Back to Article List MIT researchers have identified 138 near-Earth objects using a common astrophotography technique. NASA’s James Webb Space Telescope reveals a population of small asteroids in the main asteroid belt in this artist’s illustration. Credit: Ella Maru/MIT Over the past 200 years, astronomers have cataloged over a million asteroids in the solar system’s … Read more
It’s axiomatic that the Universe is expanding. However, the rate of expansion hasn’t remained the same. It appears that the Universe is expanding more quickly now than it did in the past. Astronomers have struggled to understand this and have wondered if the apparent acceleration is due to instrument errors. The JWST has put that … Read more