A massive comet has been spotted by Nasa’s Hubble Space Telescope.
Scientists think it’s the largest comet ever discovered, and its nucleus is 50 times bigger than average.
NASA say that it’s over 130km long, which is the length of three marathons.
This comet is currently very far away from Earth, zooming along at about 36,000 km/h.
Scientists think the comet is traveling from a place called the Oort Cloud, which is the most distant point of our solar system.
What is a comet?
Comets are large objects made of dust and ice that orbit the Sun. They’re like a giant dirty snowball.
As the comet moves towards the Sun, the heat begins to melt the ice and dust – turning it from a solid to a gas. This creates a beautiful, bright tail.
What is the Hubble Telescope?
It’s been almost 32 years since the Hubble Space Telescope sent its first images back to Earth from space.
Launched in 1990, the telescope is one of NASA’s most important research tools.