Astronomers may be just weeks away from an unprecedented opportunity to learn more about our solar system’s interstellar ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers from the University of California, Irvine (UCI) and ...

"We study cometary bodies because they act as time capsules, sealing in material from their formation billions of years ago." ...

Astronomers are launching a major international effort to study a mysterious visitor from another star system, 3I/ATLAS. This ...

A mission to Jupiter launched over a decade ago is about to complete its work with a fiery plunge into the planet’s depths sometime this month. NASA’s Juno orbiter spacecraft reached Jupiter in 2016, ...

Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...

Observing 3I/ATLAS in this active phase will give some of the clearest insights yet into the mystery of interstellar comets.

In our solar system, Earth is one of but eight planets – nine, if you really want to count Pluto – and the only one remotely hospitable to life. And as technology advances, astronomers only expect to ...

Astronomers have discovered a brand-new type of planet outside our solar system that, even in its infancy, is already bigger than Jupiter. What's more, the find represents the first clear detection of ...

The Earth often gets a few visitors in the solar system, but some stick around for a while. Here's what to know about the ...