Recently uploaded footage shows what looks like a dome-shaped UFO slowly moving along the horizon.
A couple driving near the Wiltshire monument last month spotted something unusual hovering over the area.
New Horizons' encounter with a Kuiper belt object has turned what we know of planet formation on its head.
A big announcement is expected next week and it is believed to have something to do with black holes.
The mysterious object visited by New Horizons at New Year has turned out to be much flatter than expected.
The data gathered by New Horizons earlier this month is starting to unravel the mysteries of this enigmatic object.
NASA's long-lived space probe has managed to pull off the most distant flyby of an object ever undertaken.
Following on from its historic flyby of Pluto in 2015, the probe will reach its next destination on New Year's Day.
Following its visit to Pluto back in 2015, the spacecraft has been on its way to Kuiper belt object MU69.
This remarkable footage shows a seemingly enormous Moon disappearing rapidly beneath the horizon.
NASA's New Horizons probe has made history again by capturing images 3.79 billion miles from the Earth.
The next target of NASA's New Horizons probe is a space rock with some rather intriguing properties.
The footage has been constructed from the thousands of photographs taken by the New Horizons probe.
German company ThyssenKrupp has developed an elevator that can go horizontally as well as vertically.
Following its groundbreaking flyby of Pluto, the probe is now on its way to another Kuiper Belt object.
An intriguing optical illusion has been caught on camera from the shores of North America's largest lake.
Engineers at RMIT University in Melbourne have announced a breakthrough in liquid-metal technology.
NASA is celebrating the success of its New Horizons spacecraft by showcasing a new sequence of images.
The fascinating pictures are the most detailed views of Pluto we are going to get for a very long time.
A genetically perfect buffalo named Horizon is the most sought-after member of his species on the planet.