Dubbed Teleios, the unusually symmetrical space object is puzzling astronomers with its near-perfect shape and mysterious ...

The goal was to witness firsthand a phenomenon that would demonstrate "100% that the planet is spherical" and attempt to ...

But aerospace experts believe the landing capsule itself — a spherical object about 3 feet (1 meter ... the spacecraft from ...

Launched in 1972 by the Soviet Union, the spacecraft known as Kosmos 482 was part of a series of missions bound for Venus.

A recent video created from images captured by Curiosity shows clouds tinted red and green flowing though the sky over Mars. Captured using the rover's Mastcam instrument on January 17, 2025, the ...

The decision came after scientists established three criteria for what defines a planet: it must orbit the sun, be spherical in shape and have “cleared” its orbital path of other debris.

But Langbroek and others believe the landing capsule itself — a spherical object about 3 feet (1 meter ... But since most of the planet is water, “chances are good it will indeed end up in some ocean, ...

A look at the evidence for the Earth being round or spherical. Aristotle’s reasoning is explained. The evidence includes a ship’s hull disappearing first over the horizon, the stars ...

A look at the evidence for the Earth being round or spherical. Aristotle’s reasoning is explained. The evidence includes a ship’s hull disappearing first over the horizon, the stars ...