Stories by Miriam Kramer

Astronomers spot a possible interstellar comet

A fuzzy view of a comet in deep space
Comet C/2019 Q4 seen on September 10. Photo: Canada-France-Hawaii Telescope

Astronomers think they've found an interstellar comet on its way through our solar system.

Why it matters: If confirmed, this will be only the second interstellar object on a track through the solar system found by scientists, and it could help researchers learn more about how star systems beyond our own form.

Water vapor detected in the atmosphere of a super-Earth

Artist's illustration of a planet 110 light-years from Earth.
Artist's illustration of K2-18b. Credit: ESA/Hubble, M. Kornmesser

Scientists have found water vapor in the atmosphere of a world about 8 times the mass of Earth.

Why it matters: While this isn't the "Earth 2.0" scientists have been hoping to find, the discovery does mark another step along the path toward finding a truly habitable world beyond our own.

Event Horizon Telescope hopes to produce first-ever moving image of a black hole

The first-ever photo of a black hole. Photo: EHT Collaboration

The Event Horizon Telescope (EHT) collaboration hopes to produce the first-ever moving image of a black hole by the end of the 2020s.

Why it matters: Still images of black holes can give scientists a lot of information about the mysterious and fundamental objects. But videos can help them drill into the details of how black holes consume matter and affect the galaxies they find themselves within, EHT project director Shep Doeleman said.