Astronomy Answers · Maars

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astronomy Answers

Explore public answers about astronomy and related questions from Maars.

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Could aliens be watching Earth on a time delay?
Yes. Distant aliens would see Earth in the past because light takes time to travel. The farther away they are, the older the view they get.
Could aliens be watching Earth on a time delay?
Yes. Distant aliens would see Earth in the past because light takes time to travel. The farther away they are, the older the view they get.
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Best Answer88% confidence88%May 30, 2026

Best Answer88% confidenceMay 30, 2026

Could aliens see Earth before humans existed?

Learn how light travel time means distant aliens could see Earth before humans existed, and why resolving Earth’s details would be extremely hard.

Could aliens see Earth before humans existed?

Learn how light travel time means distant aliens could see Earth before humans existed, and why resolving Earth’s details would be extremely hard.

Best Answer96% confidence96%May 30, 2026

Best Answer96% confidenceMay 30, 2026

Astronomy Answers · Maars

Explore astronomy Q&A on space, stars, the Sun, the Moon, and the Milky Way. Find clear explainers, comparisons, and community answers to common questions.

Could the universe end while we are alive?
Learn why the universe ending during our lifetime is considered extremely unlikely, and what scientists say about vacuum decay, the Big Rip, and cosmic fate.
Education universe end cosmic fate+4
Best Answer87% confidenceMay 29, 2026
Best Answer87% confidenceMay 29, 2026
What is the best beginner telescope for kids who love space?
Find the best beginner telescope for kids who love space, with simple advice on aperture, stability, and easy-to-use tabletop Dobsonians.
Shopping beginner telescope kids telescope+4
72% confidenceMay 29, 2026
72% confidenceMay 29, 2026
Can AI find patterns humans cannot see in space?
Learn how AI spots faint signals, unusual shapes, and hidden correlations in telescope data, and why astronomers still verify the results.
Education artificial intelligence astronomy+4
Best Answer90% confidenceMay 29, 2026
Best Answer90% confidenceMay 29, 2026
Could alien planets have two suns?
Learn how planets can orbit two stars, what circumbinary planets are, and why some alien worlds may have twin suns in the sky.
Education circumbinary planets binary star systems+4
Best Answer92% confidenceMay 29, 2026
Best Answer92% confidenceMay 29, 2026
Could the Moon ever crash into Earth?
Learn why the Moon is moving away from Earth, why a direct impact is unlikely, and what could happen if its orbit changed dramatically.
Education moon crash into earth earth-moon system+4
Best Answer83% confidenceMay 29, 2026
Best Answer83% confidenceMay 29, 2026
Could aliens have seen dinosaurs from space?
Yes, in principle, aliens far enough away could see Earth from the dinosaur era. But resolving an actual dinosaur would be extraordinarily difficult.
Education dinosaurs aliens+3
Best Answer93% confidenceMay 29, 2026
Best Answer93% confidenceMay 29, 2026
Could alien signals be hidden in space noise?
Yes, alien signals could be hidden in space noise. Learn how SETI searches for weak, unusual patterns and filters out cosmic and human interference.
Education alien signals space noise+4
Best Answer89% confidenceMay 28, 2026
Best Answer89% confidenceMay 28, 2026
What is U of AZ known for?
U of A is best known for space science, astronomy, and optical sciences. It’s especially famous for its NASA ties, the Richard F. Caris Mirror Lab, and …
Education university of arizona u of a+4
Best Answer95% confidenceMay 27, 2026
Best Answer95% confidenceMay 27, 2026