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An occultation of Saturn and the moon, as seen from South Africa on March 29, 2019, using a smartphone mounted to a telescope.

A photographer recorded Saturn ‘touching’ the moon with his smartphone, and the pictures are stunning

Grant Petersen of South Africa spent months preparing to photograph the conjunction of the moon and Saturn using a Galaxy S8 phone and a telescope.
An image composite of Pluto (right) and its moon Charon (left).

A ‘ridiculous’ yet simple animation by a NASA scientist shows how long it takes light to reach Pluto. If you plan to watch it, take a day ...

A scientist at NASA animated how long it takes light to travel from the sun to Pluto. The six-hour movie shows just how slow light-speed can be.
A picture of Neptune taken by the Voyager 2 spacecraft, showing a since-vanished dark storm.

The Hubble telescope has discovered a ‘dark vortex’ raging on Neptune that would swallow 20% of Earth’s surface

New pictures taken by the Hubble Space Telescope reveal a mysterious "dark tempest" storm raging on Neptune and a "giant" frigid cap on top of Uranus.
New Horizons took this detailed image of a space object called 2014 MU69 (or "Ultima Thule") at 12:26 a.m. EST on January 1, 2019.

Scientists just released the best photo yet of the most distant object ever visited by humanity

NASA's New Horizons probe flew past the space rock 2014 MU69, or Ultima Thule, on January 1 — but new photos are still downloading from deep space.
An illustration of Earth and the moon.

The speed of light is torturously slow, and these 3 simple animations by a scientist at NASA prove it

A scientist at NASA animated how long it takes light to travel around Earth, to the moon, and to Mars. The movies show just how slow light can be.

New videos of the farthest object humanity has ever explored show that it flips like a giant hourglass

NASA's New Horizons probe recently flew past a snowman-shaped space rock called 2014 MU69 (or Ultima Thule). New animations show its 16-hour rotation.
An illustration of NASA's New Horizons probe visiting 2014 MU69, a Kuiper Belt object that exists about 1 billion miles beyond Pluto.

NASA just released the first close-up photos of the farthest object humanity has ever explored — and it looks like a giant red snowman

The space rock, called 2014 MU69 or Ultima Thule, is 4 billion miles from Earth and a relic of the solar system's formation 4.5 billion years ago.
An illustration of Kuiper Belt Objects (dots) with New Horizons' flight path (yellow), Pluto, and Ultima Thule/2014 MU69.

NASA just pulled off humanity’s farthest-ever visit to a space object — the New Horizons probe successfully flew by Ultima Thule

Ultima Thule, which is 4 billion miles from Earth — and 1 billion miles beyond Pluto — is now the most distant object humanity has ever visited.
An illustration of NASA's New Horizons probe visiting 2014 MU69, a Kuiper Belt object that exists about 1 billion miles beyond Pluto.

NASA is about to explore Ultima Thule — the farthest object humanity has ever tried to visit. Here’s what to expect from the ‘mind-b...

NASA's New Horizons probe, which explored Pluto, will fly past Ultima Thule on January 1 and take hundreds of photographs of the mysterious object.
An illustration of NASA's Voyager probe drifting through space.

NASA says Voyager 2 is the second human object ever to touch interstellar space — the void between stars

NASA says its Voyager 2 probe flew into interstellar space in November and beyond the sun's reach. However, the robot has not left the solar system.