Launches
ON RECORD23MISSIONS
21 of them reached orbit. The earliest was 1961, the most recent 2022.
MARKED ON THIS DATE
1908 · 118 years ago today
Tunguska
An object exploded in the air over Siberia and flattened forest across two thousand square kilometres; the date is now Asteroid Day.
read moreARCHIVE // DAY OF YEAR
23 orbital launches flew on June 30, the earliest of them in 1961, and 21 reached orbit. Wikipedia records 2 spaceflight and astronomy events on June 30. Below are the pictures NASA published on June 30 in 6 different years — each one taken or released on this exact date.
23MISSIONS
21 of them reached orbit. The earliest was 1961, the most recent 2022.
2ENTRIES
Spaceflight and astronomy entries from Wikipedia's record of this date, oldest first — from 1971 onward.
6IMAGES
NASA's Astronomy Picture of the Day for June 30, one per year. Some are public domain and some belong to the photographer — each says which.
NASA’s Astronomy Picture of the Day, for this calendar date in each of the last several years.

2026
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
NASA · public domain

2025
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
NASA · public domain

2024
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
NASA · public domain

2023
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
NASA · public domain

2022
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
© Jose J. Chambo — used with the credit NASA publishes

2021
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
NASA · public domain
1971
The crew of the Soviet Soyuz 11 spacecraft are killed when their air supply escapes through a faulty valve.
Soviet Union ↗1973
Concorde 001 intercepts the path of a total solar eclipse and follows the moon's shadow, experiencing the longest total eclipse observation.
1973 Concorde eclipse flight ↗General-audience astronomy and spaceflight — none of it a textbook.
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LISTING
Still the best single argument for why any of this matters, and it leaves the arithmetic in. For a reader who wants the science, not just the awe.
LISTING
The case for leaving Earth, written by someone unsentimental about how hard that is. Suits readers who want the argument rather than the poster.
LISTING
Hard-SF problem solving in The Martian's key — for anyone who liked the engineering more than the peril. The only novel on this list.
BROWSE opens an Amazon search, not a specific recommendation.
LINKS AMAZON.COM
Event text and thumbnails come from Wikipedia and are used under CC BY-SA 4.0. Images are drawn only from Wikimedia Commons, which does not accept non-free content — each thumbnail links to its file page, where its licence and author are recorded.
Launch records are from The Space Devs’ Launch Library 2. Pictures are NASA’s Astronomy Picture of the Day; NASA imagery is generally not subject to copyright, but individual APOD entries are frequently the property of the photographer, and each caption says which applies.