In the 1970s, the four-color theorem was controversially solved with the help of computers. A new algorithm produced this year has improved it in some interesting ways that offer new insights into the nature of graphs. Get the full story on The Quanta Podcast:

Celebrating 65 Years: The 1970s On October 25, 2026, we hit a major milestone – 65 years since NASA announced it would build a rocket propulsion test site in Hancock County, Mississippi. History is still being written today as NASA progresses forward with the Artemis program to return American astronauts to the Moon and build a Moon Base to support an enduring human presence on the lunar surface. This look back at the 1970s features: ➡️ Testing for NASA’s Space Shuttle Program ➡️ Supporting America’s first experimental space station, Skylab ➡️ Formation of the NASA Stennis Federal City

In the late 1970s, the USSR paid for ABBA's music albums entirely in oil. Because the Soviet rouble was worthless abroad, the band traded their music rights for tankers of crude oil, which briefly made ABBA Sweden’s second-largest corporate export behind Volvo.

📉 In the 1970s, inflation averaged 7%+. After adjusting for inflation, the U.S. stock market lost nearly half its value over 13 years. Gold rose 5X. 💸 With $40T U.S. debt and $1.4T annual interest, inflation is government's easiest escape, per River data.

Elon Musk in 1970s New York City A retro street-style reimagining created with Grok Imagine, placing Elon in the heart of NYC’s iconic 70s era. Vintage fashion, classic city vibes and a glimpse into an alternate timeline brought to life with AI.