Scientific sleuths explore data gathered trillions of kilometers away and put forth different, and often conflicting, ideas to reconstruct the gaseous envelope on a distant rocky exoplanet, GJ 1132 b.
Smaller planets are scarcer in younger systems and larger planets are lacking in older systems, according to new research that analyzed hundreds of exoplanets.
While some Earth-like worlds can generate significant O2 only by biology, “waterworlds” and “desert worlds” can build up O2 even without life because of chemical changes from atmosphere loss to space.
Exposure to sunlight creates telltale patterns in the polar ice cap that change over time, potentially providing insight into the climatic history of the Red Planet.
How old is Earth’s inner core? High-pressure and high-temperature experiments suggest that our planet’s inner furnace may be much younger than expected.
New research indicates Mars’s dynamo may have been active for millions of years longer than previously thought.
Several dwarf galaxies orbiting the Milky Way were likely stolen from the Large Magellanic Cloud.
A first look at the chemical composition of the interstellar comet Borisov reveals ingredients that look a lot like those found in solar system comets. That’s not likely to last very long.
Can a star make planets with 10% of what the Sun had to work with? A synergy between two powerhouse survey telescopes is helping astronomers find that answer.
The exoplanet candidate, tentatively named Proxima c, would be a frozen snowball.