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Cornell University

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November 21, 2025

Great question! A simplified definition of hurricanes on Earth is that they're storms with winds of 74 miles/hour or higher the speed of a car on the highway But astronomers have...

May 23, 2025

We can learn a lot from sending rovers to Mars Martian geologic history, for example! But there are plenty of complications to sending people to Mars that many don't think...

January 17, 2025

Yes, we can!  Light isn't infinitely fast, it takes time to travel So that means when you look up at a star in the sky, you are looking at the light that star emitted years...

March 5, 2024

The speed of light in a vacuum is 300,000 kilometers per second It is the fastest travel speed in the Universe-- nothing travels faster than light!  And because the laws of...

March 5, 2024

Sun rays generally don't converge to a certain "point" per-se Instead, light rays are released from the Sun's spherical surface in all directions  The intensity of light rays is...