There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

A new gas giant world discovered by citizen scientists using data from NASA's exoplanet-hunting spacecraft TESS is cool, literally and figuratively. The extrasolar planet, or "exoplanet," designated ...

Since 1982, over 1 million participants have graduated from this program. What is this program? Space Camp! It is a camp for kids from all over the world, at the Space and Rocket Center in Huntsville, ...

After marking the 30th anniversary of the discovery of the first exoplanet around a sun-like star, we now look forward to what the next 30 years might offer. With the number of exoplanets having ...

An international team of researchers has just revealed the existence of three Earth-sized planets in the binary stellar ...

Siraj’s Planet Y search started about a year ago when he was trying to find out whether the shape of the Kuiper Belt is flat. “The planets of the solar system have slight tilts up and down, but ...

Astronomers have been actively hunting for a ninth planet in the solar system for almost a decade. But a new study has suggested there may be another hidden world waiting to be found. | Credit: ...

Professional and amateur astronomers alike love to share facts about our amazing universe: “The brightest star is…,” “A black hole is…,” and lots more. These facts are so incredible that we sometimes ...

From lava worlds to gas giants, NASA says the variety of these worlds is staggering—and that signs of a further 8,000 distant ...

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between five and 18, plus hundreds of potentially undiscovered ones, depending on whom ...