Editorâs note: A version of this story appeared in CNNâs Wonder Theory science newsletter. To get it in your inbox, .
CNN
—
The answers to the biggest questions in space science â what happens inside a black hole, how does a galaxy form or â lie in the far reaches of the universe.
However, there is still plenty that scientists donât know about the solar system, our cosmic neighborhood.
This week, researchers shared fascinating new findings on Uranus, the seventh planet from the sun, and the far side of the moon.
Other worlds
Whatâs known about Uranus could be off the mark. An unusual cosmic occurrence during the Voyager 2 spacecraftâs 1986 flyby might have skewed how scientists characterized the ice giant, new research suggests.
In particular, the spacecraftâs observations of Uranusâ protective magnetosphere were wildly different from astronomersâ expectations.
The new study found that when Voyager 2 was taking its readings , said Jamie Jasinski, a space plasma physicist at NASAâs Jet Propulsion Laboratory in Pasadena, California. The unusual circumstances likely distorted data collected by researchers.
Fortunately, sending a dedicated mission to study Uranus in the future is a priority for NASA, according to a 2022 report.
We are family
Fifty years ago this month, paleoanthropologist Don Johanson discovered whatâs perhaps the worldâs most famous fossil: the skeleton of Lucy, which offered the first proof that ancient hominins were already walking upright 3.2 million years ago.
However, the monumental find almost didnât happen. Working in Ethiopiaâs Afar region on November 24, 1974, Johanson caught a glance of a fragment of bone as he looked over to his right. âIf I had looked over my left shoulder, I would have missed it,â he said.
Excavating Lucyâs fragile bones took Johanson and his colleagues 2 ½ weeks. But her legacy as the first documented specimen of Australopithecus afarensis fueled decades of scientific research and debate, .
Mission critical
Tigers once roamed across Central Asia, part of their historic range â an area that extended from Turkey in the west to the Korean Peninsula in the east, and from the northern Siberian territories of Russia to the tropical islands of Indonesia.
The big cats now occupy less than 7% of that range, and in Kazakhstan, hunting and scarcer prey fueled the apex predatorsâ disappearance in the Caspian region in the 1950s, according to the World Wide Fund for Nature.
in September, with the hope that their offspring will be the first wild tigers in the region in more than 70 years.
After traveling from the Netherlands, the two captive Amur tigers, called Bodhana and Kuma, remained in a quarantine enclosure for 30 days to allow for veterinary checks. Conservationists released the pair into a seminatural 3-hectare enclosure in Kazakhstanâs Ile-Balkhash State Nature Reserve in early November.
Lunar update
The moon has some new stories to share. Scientists have published two studies on the historic cache of that Chinaâs Changâe-6 mission brought back to Earth in June.
The findings could shed light on an unsolved mystery â whatâs behind the asymmetry between the moonâs near and far sides.
The landing site of the Changâe-6 spacecraft was volcanically active about 2.8 billion years ago, the research found.
The eruption is unexpectedly young and represents an episode of volcanic activity not known from the study of samples taken from the near side of the moon.
In other space news, NASA has concerns about a potentially disastrous system breakdown due to , but Russiaâs space agency, Roscosmos, doesnât agree on the level of risk.
Ocean secrets
Researchers in California have identified a species of sea slug thatâs new to science. The creature looks otherworldly, with a gelatinous body that glows with bioluminescence when threatened.
However, whatâs most unusual about Bathydevius caudactylus is where it lives â in the midnight zone, the cold depths between 3,300 feet (1,000 meters) and 13,100 feet (4,000 meters) below the oceanâs surface.
Typically, sea slugs live on the seafloor or in coastal environments such as tide pools.
âItâs sort of like finding hummingbirds near the peak of Mt. Everest,â said Bruce Robison, a senior scientist at Monterey Bay Aquarium Research Institute. He first during a February 2000 expedition in the bay using a remotely operated robotic vehicle.
Explorations
Check out these wonder-filled stories:
â A father-daughter duo decoded a simulated signal from space. Now, .
â Archaeologists in whatâs now Iraq by comparing historical accounts with declassified images from US spy satellites.
â Photos of tiny seahorses captured by divers surprised scientists by .
â Marvel at from around the world.
And before you go, during the Leonid meteor showerâs peak.
Like what youâve read? Oh, but thereâs more. to receive in your inbox the next edition of Wonder Theory, brought to you by CNN Space and Science writers , and . They find wonder in planets beyond our solar system and discoveries from the ancient world.