Lunar Trailblazer's voyage to the Moon will take between four and seven months, de-pending on the day it launches. This ...

Researchers have peered into the atmosphere of planet WASP-121b and found its climate is stranger than anyone imagined.

For many years, astronomers have been fascinated by the mystery of exoplanets—those planets located outside our solar ...

Astronomers will use the Webb telescope to closely monitor the size and trajectory of an asteroid that has a slim chance of hitting Earth in 2032.

How is it possible for the ISS to stay in orbit? Learn more about the science behind orbiting Earth and more in this NASA "STEMonstrations" video. Credit: NASA Johnson Space Center ...

The $10 billion orbiting observatory will give astronomers a better sense of the near-Earth asteroid 2024 YR4's size and ...

The odds that asteroid 2024 YR4 could hit Earth in 2032 recently spiked from a little more than 1% to 2.3% as more ...

YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see how much of a risk the space rock poses.

Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a ...

The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking ...

The asteroid follows an elongated orbit around the Sun and currently is moving away from Earth in a nearly straight line. Scientists are hoping to rule out any chance of the asteroid impacting ...