Science

Review | The big bang created the universe. What created the big bang?

Comment on this story Comment In the past century, astrophysicists have coalesced around the notion that our universe resulted from a big bang, when our prenatal universe was so small, hot and compressed that matter and time effectively did not exist. The evidence of this has mostly come from calculating several known quantities of universal …

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Do ‘bouncing universes’ have a beginning?

Credit: Pixabay/CC0 Public Domain In trying to understand the nature of the cosmos, some theorists propose that the universe expands and contracts in endless cycles. Because this behavior is hypothesized to be perpetual, the universe should have no beginning and no end—only eternal cycles of growing and shrinking that extend forever into the future, and …

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Tonga volcano blasted unprecedented amount of water into atmosphere

Comment on this story Comment The Hunga Tonga-Hunga Ha’apai eruption lasted less than a day, but it unleashed the most water vapor into the atmosphere by a volcano on record. Researchers say the blast may temporarily warm surface temperatures in years to come and also deplete stratospheric ozone. On Jan. 15, the underwater volcano erupted …

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Visualizing the Relationship Between Cancer and Lifespan

Is it Possible to Bring Back Extinct Animal Species? View a higher resolution version of this infographic. Humanity has been tinkering with natural life for thousands of years. We’ve become remarkably good at it, too—to date, we’ve modified bacteria to produce drugs, created crops with built-in pesticides, and even made a glow-in-the-dark dog. However, despite …

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South Korea Is Scouting Out the Moon, With More Missions to Come

South Korea set off for the moon on Thursday. But it doesn’t want to stop there. “We are also considering using the moon as an outpost for space exploration,” Kwon Hyun-joon, director general of space and nuclear energy at South Korea’s Ministry of Science, said in a written response to questions. “Although we hope to …

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Artemis 1 rocket beside Vehicle Assembly Building at NASA

NASA’s Artemis 1 moon rocket to roll out Aug. 18 for lunar launch

NASA’s ambitious Artemis 1 moon mission is go to return to the pad, one last time, ahead of launch. The Artemis 1 stack will make the roughly 4-mile (6.4 kilometers) journey from Kennedy Space Center’s Vehicle Assembly Building to Launch Complex 39B on Aug. 18, NASA confirmed on Friday (Aug. 5). The rollout will keep …

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