Astronomers have discovered a new exoplanet that may be habitable 35 light-years from Earth. Named L 98-59 f, it joins four ...

The imprecision in the measurements of claimed interstellar fireballs means it is highly likely they originate in the solar system instead, a new study reports.

Thanks to new measurements of very old meteorites, the current consensus on the Solar System's age is 4.5684 billion years old, with an uncertainty of 240,000 years—a tiny fraction of a percent.

However, on the much smaller scales of our solar system, it’s hard to measure the miniscule changes affected by dark matter, even at the distances of the outer planets. Credit: Astronomy: Roen ...

In October, the object from outside the solar system is expected to make its closest pass to a planet, coming within 0.4 AU (37 million miles) of Mars.

Jupiter, the largest planet in the solar system, was 2 to 2.5 times bigger in its earlier life, according to new research. Credit: NASA / JPL-Caltech / SwRI / MSSS / Tanya Oleksuik Jupiter, the ...