Though 3I/ATLAS will never come close to Earth, its passage offers a rare chance to study material beyond our solar system ...

A11pl3Z never left room for such doubt, its orbital eccentricity was initially thought to be more than 10, and is currently ...

Only one of the 20 known asteroids has an orbital eccentricity below 0.38. This makes sense since asteroids with wider orbits come closer to Earth and are easier to detect.

Researchers from the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences and Columbia University ...

As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.

Pluto, for example, has a highly elongated orbit compared to the planets in our solar system and has an orbital eccentricity of 0.25. Earth has an orbital eccentricity of just 0.02.

How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here ...

In fact, the high orbital eccentricity actually means that the exoplanet only spends part of its orbit in the habitable zone, which is a circular zone around the star at a distance where ...

Earth’s orbit around the Sun is not circular, but an ellipse. The perimeter of Earth’s orbit is roughly 584 million miles (940 million km).

"It has already been proposed that Earth's orbital eccentricity was notably high during this event," Kaib explained, "but our results show that passing stars make detailed predictions of Earth's ...