How Do Astronomers Find Planets in Other Solar Systems?

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

'Ice giant' planets Uranus and Neptune might not be full of ice after all

The cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter ...
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Could our solar system have 9 planets after all?

For decades, our solar system was thought to have nine planets, with Pluto considered the smallest and farthest. But in 2006, Pluto was officially reclassified as a dwarf planet by the ...

How space agencies discover planets in other solar systems

Astronomers are uncovering distant worlds beyond our solar system using ingenious indirect methods like observing stellar ...
Space.com

TRAPPIST-1d isn't the Earth-like planet scientists had hoped it to be, according to JWST data

"At this point, we can rule out TRAPPIST-1d from a list of potential Earth twins or cousins." There's bad news for our hopes of habitable planets existing around TRAPPIST-1, with the James Webb ...
Nature

Star flares when an orbiting planet gets too close

The Sun makes Earth habitable, governs its climate and drives a variety of natural phenomena through its variable magnetism. Indeed, all planets in and outside the Solar System exist under the ...
Live Science

Astronomers identify first 'good' candidate for controversial Planet Nine deep in our solar system

Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in our solar system. However, as with all ninth planet research, the ...
CNET

See Six Planets Line Up in the Last Planet Parade For Three Years

Fresh off the excitement of the Perseids meteor shower is a chance to see six planets lined up in the sky at once. These events, colloquially known as planet parades, occur occasionally with the ...