Here’s how it works. The term "perihelion" describes the point in an astronomical body's orbit where it is nearest to the sun. Derived from the Greek words peri (around) and helios (sun), the ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

The Znamya project had the potential to change the world. The BBC's Tomorrow's World reported on an experiment that was launched in February 1993.

Mysterious little red dots threatened to overhaul modern cosmology—but new research may have solved the celestial conundrum.

The busiest time of the WNBA offseason is upon us as free agents meet with their prospective teams leading up to Feb. 1, when ...

And while the back-to-back road victories came against teams with losing records and NET rankings below 300, the Dukes also ...

Located less than 20 light years away, HD 20794d could potentially be one of the most Earth-like planets found so far, ...

The Blue Ghost lunar lander has captured its first images of the moon from Earth’s orbit as well as a video of Earth ...

By Valentine's Day, the sun rises at 6:54 a.m. and sets at 5:44 p.m., giving us 10 hours and 50 minutes of sunlight. And then ...

Firefly Aerospace's "little lander" has captured the littlest lunar eclipse in a breathtaking video captured from Earth orbit ...

A dive into probabilities, asteroid impact modeling, and what sort of damage an approximately 180-foot asteroid could cause ...

Arizona State is searching for a signature win — and Saturday presents a great opportunity. The Sun Devils welcome rival Arizona to Desert Financial Arena for ...