She mapped our solar system's "alternate fate" had it housed an extra ... formation of a planet that is at least twice the size of Earth's mass—a super-Earth—instead of an asteroid belt.

GJ 1214 b, nicknamed Enaiposha, is a planet discovered 47 light-years away that has been reclassified from a mini-Neptune to ...

Astronomers have discovered two new exoplanets that are similar to other worlds found in the Milky Way, but unlike any in our ...

Primordial helium from the beginning of the solar system may be stuck inside Earth's solid core, new research suggests. The findings could have implications for a long-standing debate about how ...

Our solar system passed through a vast wave of gas and dust around 14 million years ago, dimming Earth’s view of the night sky. The wave may even have left traces in our planet’s geological ...

Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished together by gravity. That same cloud gave rise to our entire solar system, including our star, the sun.

As such, one alternative that scientists are ... black holes flying near the inner planets of the solar system — Mercury, Venus, Earth and Mars. They found that if primordial black holes exist ...

From there, we can try to understand how strange our solar system really is, or how normal it is.” Carbon dioxide has been an essential ingredient for development of life on Earth, making it a ...