length of day

A Day on Earth Used to Only Be 19 Hours

A new study has revealed that for 1 billions years, a day on Earth lasted for about 19 hours.

1 year ago

There's a problem with Venus. We don't know how fast it rotates. For a space-faring civilization like ours, that's a…

5 years ago

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Due to its rapid orbital period and slow rotation, a day on Mercury lasts 176 days, which is twice as…

8 years ago

Venus is a planet of extremes: extreme heat, extreme weather, and extremely long days. In fact, a single day on…

8 years ago

Mars is different from Earth in many ways, being rather cold and inhospitable. But interestingly, a day on Mars is…

9 years ago

[/caption] The Venus length of day is 243 days. But the story is a little stranger than that. Venus is…

15 years ago

The length of day on Venus is 243 Earth days. Read that again, it's not a year, but the length…

15 years ago