Astronomers have, for the first time, pinned down both the mass and distance of a planet that drifts through the galaxy ...

Not all planets are lucky enough to live in a neighborhood like our Solar System – some are doomed to roam the cosmos alone.

Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...

Determining the size of an Earth-size exoplanet by the amount of starlight it blocks hundreds of light-years away once was the realm of science fiction. Measuring the mass of such a small planet based ...

In science, there are thousands of ways to measure the world around us that the average person may never encounter. For example: Pascals to measure pressure, Candles to measure light intensity, and ...

An actively feeding black hole surrounds itself with a disk of hot gas and dust that flickers like a campfire. Astronomers have now found that monitoring changes in those flickers can reveal something ...

Measuring mass with marble fizz and massive bricks! Matter cannot be created nor destroyed. But weight, there’s more to know about the Conservation of Mass! STEM Challenge: Designing a Simple Balance ...

For the first time, astronomers have succeeded in weighing a binary pair of brown dwarfs and precisely measuring their diameters. These kinds of exact measurements are not possible when observing a ...

While most planets that we are familiar with stick relatively close to their host star in a predictable orbit, some planets ...