For the first time in years, astronomers are seriously talking about adding a new member to the solar system’s planetary ...
By measuring iron isotopes in Moon rocks and meteorites, researchers determined Theia probably formed closer to the Sun than ...
LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...
Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...
In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that ...
The European Southern Observatory said the discovery as "the first clear detection of a baby planet in a disc with multiple rings" Abigail Adams is a Human Interest Writer and Reporter for PEOPLE. She ...
The unusual comet—which is to pass Earth again in the coming weeks—is only the third known object to visit us from outside ...