The proposed $1 billion plus-up for the X-37B program is part of a pot of money dedicated to the “Enhancement of Department of Defense Resources to Improve United States Indo-Pacific Command,” with a ...

The planet's orbit also plays a crucial role. A highly elliptical orbit, like that of Kepler-735c, can lead to extreme climatic variations. The presence of liquid water is another essential criterion.

New research on the orbits of these mysterious asteroids near Venus stress the need for better space rock surveillance.

Aerobraking brings a spacecraft from a large, circular orbit into a highly elliptical orbit, into a smaller, more circular one. Moneya/Wikimedia Commons, CC BY-SA ...

Illustration showing the highly elliptical orbit of Europe’s two Proba-3 satellites, which as an apogee (or top of orbit) of around 60,000 kilometers and perigee of 600 km. Coronagraph ...

When a spacecraft arrives at Mars, it does so in a hyperbolic orbit. While an elliptical orbit is closed, a hyperbolic orbit doesn’t go all the way around a planet. Maxmath12/Wikimedia Commons ...

Instead, it was trapped in a highly elliptical orbit that has persisted for 53 years. The spacecraft broke apart shortly after launch.

Spacecraft that orbit around Earth do so in two types of orbits: circular and elliptical. In a circular orbit, the spacecraft is always at the same distance from the center of the Earth.

But Langbroek and others believe the landing capsule itself — a spherical object about 3 feet (1 meter) in diameter — has been circling the world in a highly elliptical orbit for the past 53 ...

Earth with a highly elliptical orbit would experience extreme temperature swings; how would life adapt? The tables have turned, and Putin’s Russia is now in dire trouble How to hard boil eggs ...