Arecibo Telescope

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/arecibo-telescope

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. When was Arecibo Telescope built?November 1963
2. What is the location?Arecibo Observatory, Puerto Rico
3. What is the dish diameter?305 meters (1,000 feet)
4. What was the Arecibo Telescope and why was it special?It was a giant 305‑meter radio telescope built in Puerto Rico that could listen to very faint signals from space, making it the world’s largest single‑aperture radio telescope for many years.
5. How did the Arecibo Telescope point to different parts of the sky?Instead of moving the huge dish, a platform with a steerable dome and receiver moved over the fixed dish, letting the telescope aim at stars and planets.

Spherical reflector: A telescope dish shaped like a section of a sphere to focus signals.
Gregorian dome: A secondary reflector system used to focus radio waves to a point.
Pulsar: A rapidly rotating neutron star that emits beams of radio waves.
Gravitational waves: Ripples in spacetime caused by massive cosmic events, predicted by Einstein.