Jump0Starting point
Earth: the only world with oceans in plain sight
Curious facts about Earth with their sources: oceans on the surface, 44 tonnes of space dust a day and a mini-moon in 2024.
Curious facts
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Oceans in plain sight, and others hidden
It is the only known world with life and with oceans of liquid water on its surface. It is not the only one with liquid water: Europa, Enceladus and Ganymede hide oceans under their ice, and NASA calls them ocean worlds. 1
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44 tonnes fall on it every day
Every day about 44 tonnes of meteoritic material fall on Earth. Most of the comet debris behind meteor showers is between the size of a grain of sand and a pea. 2
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A mini-moon in 2024
From 29 September to 25 November 2024 the small asteroid 2024 PT5 travelled with Earth as a “mini-moon”, though it never completed a full loop around it. Its light looks like that of lunar rocks: it may be a piece of the Moon. 34
Videos
My shorts about Earth, in Spanish.
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La Luna se está escapando
With AI-made illustrations, labelled on screen
No video loads until you tap one. Then it comes from YouTube (youtube-nocookie.com), which receives your IP address. More in the website privacy policy.
Earth in Orbit
In the game, the route starts here: Earth is jump 0. Its logbook card says:
Logbook · Jump 0
Only known world with life and liquid water oceans
Two steps with the Google account you use on Play: join the group, then download the test. Google Play can take a while, sometimes more than an hour, before it lets you download it; if you see “Item not found”, wait and try again.
Sources
- NASA, Ocean Worlds. science.nasa.gov/solar-system/ocean-worlds
- NASA, Meteors and Meteorites: Facts. science.nasa.gov/solar-system/meteors-meteorites/facts
- C. and R. de la Fuente Marcos, RNAAS 8, 224 (2024).
- de la Fuente Marcos et al., 2024 (arXiv). arxiv.org/abs/2411.08834
Checked between 8 and 11 October 2026.
Image: NASA (DSCOVR EPIC) · original