References
Latest References

The Fermi Paradox: Where are all the aliens?
By Daisy Dobrijevic last updated
Reference The Fermi Paradox seeks to answer the question of where the aliens are. After all, the universe is incredibly old, big and filled with potentially habitable planets.

How to debate a flat-Earther: Proven scientific arguments and strategies
By Paul Sutter last updated
Some people around the world believe our planet is flat. Here's the (surprising) truth about debating them.

Best space gifts 2025: Top gifts for space-loving kids and adults
By Alexander Cox last updated
The best space gifts cover a range of products and prices as there's a suitable treat for any space fan, from telescopes, Lego, star projectors and more.

Best headlamps for astronomy and stargazing 2025: The top picks for seeing at night
By Tantse Walter last updated
Buying Guide We've rounded up the best headlamps for astronomy and stargazing — we've considered functionality, comfort and cost.

Best neutral density filters in 2025
By Jamie Carter last updated
Buying Guide The best neutral density filters adjust the light transmitted into your camera, allowing for better nighttime photography.

The brightest planets in April's night sky: How to see them (and when)
By Joe Rao last updated
Reference Where are the bright naked-eye planets in April 2025 and when are the best times to view them?

Night sky, April 2025: What you can see tonight [maps]
By Chris Vaughan last updated
Reference Find out what's up in your night sky during April 2025 and how to see it in this Space.com stargazing guide.

Best beginner drones 2025: Easy to fly and affordable models
By James Abbott last updated
Our picks of the best beginner drones are all easy to use but still offer excellent flying experiences with a good range of features, from brands including DJI and Potensic.
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