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WikiCards · Card list · Science cards · Chandra X-ray Observatory
Uncommon card · Science
Chandra X-ray Observatory, an Uncommon card
The Chandra X-ray Observatory, previously known as the Advanced X-ray Astrophysics Facility, is a Flagship-class space telescope launched aboard the Space Shuttle Columbia during STS-93 by NASA on July 23, 1999.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 74
- DEF
- 72
- Power
- 146
- Wikipedia reads a year
- 81,000
Ranked #2,015 of the 3,000 cards of the base set by power (ATK + DEF).
Chandra X-ray Observatory quiz: 3 questions
Three questions on the Chandra X-ray Observatory card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
Chandra is an Earth satellite in a 64-hour orbit, and its ______ is ongoing as of 2025.
Answer
mission. Chandra is an Earth satellite in a 64-hour orbit, and its mission is ongoing as of 2025. From the Chandra X-ray Observatory article on Wikipedia.
In which decade?
The Chandra X-ray Observatory, previously known as the Advanced X-ray Astrophysics Facility, is a Flagship-class space telescope launched aboard the Space Shuttle Columbia during STS-93 by NASA on July 23, ____.
Answer
1990s. The Chandra X-ray Observatory, previously known as the Advanced X-ray Astrophysics Facility, is a Flagship-class space telescope launched aboard the Space Shuttle Columbia during STS-93 by NASA on July 23, 1999. From the Chandra X-ray Observatory article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Biomedical engineering. Biomedical engineering 79 · Chandra X-ray Observatory 74 · Biplane 71 · Broom 68 ATK in WikiCards.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- Chandra is sensitive to X-ray sources 100 times fainter than any previous X-ray telescope, enabled by the high angular resolution of its mirrors.
- Since the Earth's atmosphere absorbs the vast majority of X-rays, they are not detectable from Earth-based telescopes, therefore space-based telescopes are required to make these observations.
- Chandra is an Earth satellite in a 64-hour orbit, and its mission is ongoing as of 2025.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Chandra X-ray Observatory article was read about 81,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 74 and blocks with 72: each hit it takes is cut by 29 %.
How to get Chandra X-ray Observatory
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
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The cards just above and just below Chandra X-ray Observatory in the power ranking, all domains together.
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- BhagalpurUncommon · Society · ATK 76 DEF 70
- Veneration of the deadUncommon · Nature · ATK 78 DEF 68
- Louis Le PrinceUncommon · Science · ATK 75 DEF 71
- DyeUncommon · Science · ATK 76 DEF 70
Card lists
- Wikipedia quizNew questions every day
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- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Chandra X-ray Observatory (revision), CC BY-SA 4.0. Photo : NASA/CXC/NGST, Public domain, Wikimedia Commons.
