The light you see from some stars today began traveling before humans existed.
Fact #1761
More Space Facts
The Sun accounts for more than 99% of the mass of our solar system.
Fact #40 · Space
Some stars appear to dim irregularly for reasons that are still studied.
Fact #1599 · Space
The Sun occasionally emits powerful solar flares.
Fact #1620 · Space
Neutron stars are so dense that a single teaspoon would weigh billions of tons on Earth.
Fact #1856 · Space
The Earth's rotation slightly bulges at the equator.
Fact #325 · Space
The Earth's orbit determines the length of the year.
Fact #318 · Space
The Moon completes its phases in about 29.5 days.
Fact #282 · Space
Project Blue Book investigated reports of unidentified flying objects.
Fact #1047 · Space
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