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

We model clusters with initially N = 8k and 16k single stars of the same mass, orbiting around a point-mass galaxy. For each orbital eccentricity that we consider, we find the apogalactic radius at ...

Mars' southern hemisphere, with a longer and warmer summer due to Mars' orbital eccentricity, would offer a prime initial environment for trees, specifically in areas like the Hellas Basin with ...

There's nothing innate about the Earth or its atmosphere that marks the boundaries of low Earth orbit. This is a distinction ...

5. Rosu, S., Quintero, E. A., Rauw, G., & Eenens, P. (2023), New insight into the massive eccentric binary HD 165052: self-consistent orbital solution, apsidal motion, and fundamental parameters, ...

Join our newsletter to get the latest military space news every Tuesday by veteran defense journalist Sandra Erwin. WASHINGTON — Lockheed Martin Corp announced Oct. 30 it has completed the ...