50 Years Ago
- Astronomy
In 1968, scientists thought they were close to detecting gravity waves
Despite an unverified discovery in 1968, spacetime ripples remained elusive for nearly 50 years.
- Tech
50 years ago, NASA astronauts prepared to return to space
Apollo 7 crewmembers underwent their first major tests 50 years ago. Today, U.S. astronauts struggle to get into space.
By Dan Garisto - Animals
50 years ago, scientists warned of a sparrow’s extinction
Only 17 dusky seaside sparrows remained in 1968. Today, there are none.
- Health & Medicine
50 years ago, starving tumors of oxygen proposed as weapon in cancer fight
Starving cancerous tumors of oxygen was proposed to help kill them. But the approach can make some cancer cells more aggressive.
- Health & Medicine
50 years on, vaccines have eliminated measles from the Americas
Thanks to high vaccination rates, measles has mostly disappeared from the Americas.
- Ecosystems
50 years ago, invasive species traveled the Suez Canal
Hundreds of Red Sea species used the Suez Canal to migrate to the Mediterranean Sea, leading to the decline of some native species.
By Kyle Plantz - Astronomy
50 years ago, pulsars burst onto the scene
Thousands of pulsars have been discovered since the announcement of their detection 50 years ago.
- Health & Medicine
50 years ago, early organ transplants brought triumph and tragedy
In 1968, the liver transplant field had its first small successes. Now, more than 30,000 patients in the U.S. receive a donated liver each year.
- Physics
50 years on, nuclear fusion still hasn’t delivered clean energy
In 1968, scientists predicted that the world would soon use nuclear fusion as an energy source.
- Health & Medicine
50 years ago, IUDs were deemed safe and effective
50 year ago, the U.S. Food and Drug Administration declared intrauterine devices safe and effective, though officials didn’t know how the IUDs worked.
- Archaeology
How the Dead Sea Scrolls survived a war in the 1960s
50 years after the Dead Sea Scrolls survived a war, another possible scroll cave offered tantalizing new clues.
By Bruce Bower - Genetics
50 years ago, synthetic DNA made its debut
Synthetic DNA has come a long way since it arrived on the scene half a century ago.