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Astronomy & Space (Science, Nature & How It Works, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Astronomy & Space (Science, Nature & How It Works, Kindle eBooks), updated Nov 2, 2026: median price $5.99, median 84 reviews, average rating 4.5 and a KDPTop opportunity score of 24/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $9.99 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 8% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 25% of the parent category Science, Nature & How It Works (336), one of the easier corners under it.
- Prices spread wide: the middle half runs from $3.99 to $9.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Astronomy & Space best sellers
-
Earth! My First 4.54 Billion Years (Our Universe Book 1)
by Stacy McAnulty
- List rank#1
- Price$8.99
- Rating4.8
- Reviews1,094
-
National Geographic Little Kids First Big Book of Space (National Geographic Little Kids First Big Books)
- List rank#2
- Price$7.99
- Rating4.8
- Reviews15,500
-
What Do We Know About the Solar System? (Earth, Space, & Beyond)
by Ian Graham
- List rank#3
- Price$6.24
- Rating5.0
- Reviews2
-
Exploring Dangers in Space: Asteroids, Space Junk, and More (Searchlight Books ™ — What's Amazing about Space?)
by Buffy Silverman
- List rank#4
- Price$9.99
- Rating4.7
- Reviews5
-
Space (Little Scientist)
by Martha E. H. Rustad
- List rank#5
- Price$6.95
- Rating3.8
- Reviews9
-
Space (Smart Kids): For Kids Who Really Love Space!
by Roger Priddy
- List rank#6
- Price$9.99
- Rating4.8
- Reviews1,203
-
Pilot's Handbook of Aeronautical Knowledge: FAA-H-8083-25C
by Federal Aviation Administration Staff
- List rank#7
- Price$16.99
- Rating4.8
- Reviews700
-
Exploring Black Holes (Searchlight Books ™ — What's Amazing about Space?)
by Laura Hamilton Waxman
- List rank#8
- Price$9.99
- Rating4.4
- Reviews25
-
Super Interesting Facts For Smart Kids: 1272 Fun Facts About Science, Animals, Earth and Everything in Between
by Jordan Moore
- List rank#9
- Price$3.99
- Rating4.7
- Reviews4,039
-
Can You Survive an Alien Invasion?: An Interactive Doomsday Adventure (You Choose: Doomsday)
by Blake Hoena
- List rank#10
- Price$6.95
- Rating4.4
- Reviews105
Same niche in Books: Astronomy & Space
FAQ
Is Astronomy & Space a good niche for Amazon KDP?
Its KDPTop opportunity score is 24/100, which makes it highly competitive. The median best seller has 84 reviews and sells for $5.99.
How many reviews do you need to rank in Astronomy & Space?
The median best seller has 84 reviews, and 53% of them have fewer than 100.
What do Astronomy & Space best sellers cost?
The median price is $5.99; half of the best sellers are priced between $3.99 and $9.99.
Can new books break into Astronomy & Space?
8% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.