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Bookmark or Share- In Depth | Pluto – NASA Solar System ExplorationWith a radius of 715 miles (1,151 kilometers), Pluto is about 1/6 the width of Earth. If Earth was the size of a nickel, Pluto would be about as big as a popcorn kernel. From an average distance of 3.7 billion miles (5.9 billion kilometers), Pluto is 39 astronomical units away from the Sun.
- In Depth | Mars – NASA Solar System ExplorationThe fourth planet from the Sun, Mars is one of Earth's two closest planetary neighbors (Venus is the other). Mars is one of the easiest planets to spot in the night sky – it looks like a bright red point of light.
- 10 Need-to-Know Things About Neptune - NASA Solar System ExplorationNeptune takes about 16 hours to rotate once (a Neptunian day), and about 165 Earth years to orbit the sun (a Neptunian year).
- In Depth | Earth's Moon – NASA Solar System ExplorationThe brightest and largest object in our night sky, the Moon makes Earth a more livable planet by moderating our home planet's wobble on its axis, leading to a relatively stable climate. It also causes tides, creating a rhythm that has guided humans for thousands of years.
- What to Expect | Eclipse 2024 Tabs - NASA Solar System ExplorationA total solar eclipse happens when the Moon passes between the Sun and Earth, completely blocking the face of the Sun. People viewing the eclipse from locations where the Moon’s shadow completely covers the Sun – known as the path of totality – will experience a total solar eclipse.
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