In the coming years, an unprecedented number of people will leave planet Earth—but it’s becoming increasingly clear that deep ...

Astronomers mistook a car SpaceX blasted into space years ago as an asteroid. The brief mix-up highlights the sometimes ...

Welcome to Edition 7.30 of the Rocket Report! The US government relies on SpaceX for a lot of missions. These include ...

Some worlds, however, have more elongated orbits. The degree of elongation, known as eccentricity, is measured on a scale of 0 (for a perfect circle) to 1 (a hyperbola). Earth's orbital eccentricity ...

Mars orbits farther from the Sun than Earth, and the Sun itself was fainter billions of years ago. This makes it difficult to explain how the planet ever reached temperatures high enough for liquid ...

An international team, including the UNIGE and the NCCR PlanetS, has discovered a super-Earth HD 20794 d. It is larger than the Earth and part of a planetary system containing two other planets. The ...

Thirty years after the discovery of the first exoplanet, we detected more than 7000 of them in our Galaxy. But there are still billions more to be discovered! At the same time, exoplanetologists have ...

The sun's distance from Earth changes throughout ... do with the observation of orbits of other planets. "In about 1604, Johannes Kepler fitted an ellipse model of Mars' orbit to observations ...

Venus, Mars, Jupiter and Saturn will all be visible ... even though the planet itself is much smaller than Saturn; Earth's next door neighbor, Venus is sometimes called the Morning or Evening ...

NASA's Curiosity Rover has been exploring Mars since 2012 and more recently has found evidence of ice-free ancient ponds and lakes on the surface. The rover found small undulations like those seen in ...