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Solar System space probes operational as of November 2024. This is a list of active space probes which have escaped Earth orbit.It includes lunar space probes, but does not include space probes orbiting at the Sun–Earth Lagrangian points (for these, see List of objects at Lagrangian points).
Mercury, the smallest and innermost planet, has no moons, or at least none that can be detected to a diameter of 1.6 km (1.0 mi). [2] For a very short time in 1974, Mercury was thought to have a moon. Venus also has no moons, [3] though reports of a moon around Venus have circulated since the 17th century.
Mars has two relatively small (compared to Earth's) natural moons, Phobos (about 22 kilometres (14 mi) in diameter) and Deimos (about 12 kilometres (7.5 mi) in diameter), which orbit close to the planet. The origin of both moons is unclear, although a popular theory states that they were asteroids captured into Martian orbit. [199]
Recently, NASA selected the SpaceX Falcon Heavy to launch the Dragonfly aerial probe to Titan, Saturn’s largest moon. The selection constitutes another win for Elon Musk’s launch company.
SpaceX is now targeting 8.20am local time, or 2.20pm in the UK, it has said in a tweet. Tim Peake says launch will ‘herald a new era of deep space exploration' Monday 17 April 2023 11:50 ...
Elon Musk’s SpaceX is conducting the biggest rocket launch in history – and you can follow along live. The company’s Starship rocket is one day expected to carry humans to the Moon and onto ...
Montage of planets and some moons that the two Voyager spacecraft have visited and studied. It is the only program that visited all four outer planets. A total of nine spacecraft have been launched on missions that involve visits to the outer planets; all nine missions involve encounters with Jupiter, with four spacecraft also visiting Saturn.
Here’s what you may have missed this week in outer space. They say space is the place — and there’s a whole lot going on out there. Here’s what you may have missed this week in outer space.