Accelerating expansion of the universe, an Uncommon card

The card carries these facts from its Wikipedia article.

• The accelerated expansion of the universe was discovered in 1998 by two independent projects, the Supernova Cosmology Project and the High-Z Supernova Search Team, which used distant type Ia supernovae to measure the acceleration.
• The idea was that as type Ia supernovae have almost the same intrinsic brightness, and since objects that are further away appear dimmer, the observed brightness of these supernovae can be used to measure the distance to them.
• The distance can then be compared to the supernovae's cosmological redshift, which measures how much the universe has expanded since the supernova occurred, the Hubble law established that the further away an object is, the faster it is receding.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Accelerating expansion of the universe article was read about 59,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 75 and blocks with 74: each hit it takes is cut by 30 %.

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.

The cards just above and just below Accelerating expansion of the universe in the power ranking, all domains together.