Each of the planets, labeled b, c, d, and e, has a mass between 20% and 30% of Earth's, making them among the smallest yet ...

A new study challenges traditional models of how planets form. A new analysis of existing data suggests that exoplanets with masses comparable to Jupiter may have formed significantly earlier than ...

Astronomers had observed auroras on all other planets in the Solar System, and spotting one in Neptune completes the list.

In his lecture, Levine noted, the United States is planning a human mission to Mars that may begin as early as 2035. The ...

Yet despite the drumbeat of evidence, we still know of just one planet in the cosmos with life — the one you’re standing on.

We often focus on space observatories that peer beyond Earth. But the vast majority of satellites stare right back at us.

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

An analysis of two decades of data from NASA's Hubble Space Telescope has provided fresh insights into the complex ...

Astronomers used ALMA to observe Proxima Centauri and found frequent, intense flares that could destroy atmospheres of nearby ...

Ellipses are defined as curves that surround two focal points. At any point on the ellipse, the sum of the distance to both ...

The study sheds light on Proxima Centauri’s unusually robust magnetic field, which fuels its flaring activity. As its ...

Long-Sought Auroral Glow Finally Emerges Under Webb’s Powerful Gaze Neptune lies in the cold, dark reaches of the outer edges ...