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Astrophysics & Space Science (Astronomy & Space Science, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Astrophysics & Space Science (Astronomy & Space Science, Kindle eBooks), updated Nov 2, 2026: median price $7.99, median 428 reviews, average rating 4.5 and a KDPTop opportunity score of 17/100 (highly competitive).
| Price range (middle 50%) | $3.74 – $11.99 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 6% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its review barrier is higher than in 78% of Kindle eBooks categories: the median best seller has 428 reviews, so new books need time to build up.
- Prices spread wide: the middle half runs from $3.74 to $11.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Astrophysics & Space Science best sellers
-
Black Holes: The Key to Understanding the Universe
by Brian Cox
- List rank#1
- Price$1.99
- Rating4.6
- Reviews1,581
-
Starry Messenger: Cosmic Perspectives on Civilization
- List rank#2
- Price$11.99
- Rating4.7
- Reviews4,993
-
Cosmic Queries: StarTalk's Guide to Who We Are, How We Got Here, and Where We're Going
by Neil Tyson
- List rank#3
- Price$1.99
- Rating4.8
- Reviews3,494
-
Scientific American September 2026
- List rank#4
- Price$6.99
- Rating4.8
- Reviews13
-
Scientific American October 2026
- List rank#5
- Price$6.99
- Rating4.2
- Reviews7
-
Scientific American June 2026
- List rank#6
- Price$6.99
- Rating4.4
- Reviews42
-
Rocket Dreams: Musk, Bezos, and the Inside Story of the New, Trillion-Dollar Space Race
by Christian Davenport
- List rank#7
- Price$13.99
- Rating4.5
- Reviews143
-
Take Me to Your Leader: Perspectives on Your First Alien Encounter
- List rank#8
- Price$13.99
- Rating4.4
- Reviews1,467
-
A Brief History of Time
by Stephen Hawking
- List rank#9
- Price$7.99
- Rating4.6
- Reviews11,625
-
How the Universe Got Its Spots: Diary of a Finite Time in a Finite Space
by Janna Levin
- List rank#10
- Price$9.49
- Rating4.3
- Reviews73
Same niche in Books: Astrophysics & Space Science
FAQ
Is Astrophysics & Space Science a good niche for Amazon KDP?
Its KDPTop opportunity score is 17/100, which makes it highly competitive. The median best seller has 428 reviews and sells for $7.99.
How many reviews do you need to rank in Astrophysics & Space Science?
The median best seller has 428 reviews, and 26% of them have fewer than 100.
What do Astrophysics & Space Science best sellers cost?
The median price is $7.99; half of the best sellers are priced between $3.74 and $11.99.
Can new books break into Astrophysics & Space Science?
6% 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.