Sea levels are likely rising faster than previously thought, meaning low-lying coastal cities in the U.S. could flood far more regularly in the coming decades, a NASA study has revealed. According to the study, which analyzed three decades of satellite observations, by 2050, sea levels along the coastlines of the contiguous U.S. could rise as … Read more
Astronomers estimate that roughly 85% of all the matter in the universe is dark matter, meaning only 15% of all matter is normal matter. Accounting for dark energy, the name astronomers give to the accelerated expansion of the universe, dark matter makes up roughly 27% of all the mass energy in the cosmos, according to … Read more
Twilight is closing in on NASA’s Mars InSight lander — a robotic seismology lab that has been studying the interior workings of the Red Planet since November 2018. On Tuesday (Dec. 20), NASA announced in a statement (opens in new tab) that InSight failed to respond to routine communications from Earth. This is an alarming, … Read more
The winter solstice heralds the astronomical start of winter and marks the day with the fewest hours of daylight for the year. But what’s the science behind the shortest day and longest night? The winter solstice — and for that matter, the four seasons — occur because Earth is tilted at an angle of about … Read more
The oldest known writing dates back more than 5,000 years to ancient Mesopotamia, in what is now mostly present-day Iraq. But who was the first author known by name? Archaeological discoveries have revealed the earliest known writing was invented about 3400 B.C. in an ancient Mesopotamian area known as Sumer, near the Persian Gulf, according … Read more
An ancient meteorite that crash-landed on a U.K. driveway may have solved the mystery of where Earth’s water came from. The 4.6 billion-year-old space rock, which landed in front of a family home in the English town of Winchcombe in February 2021, contains water that closely resembles the chemical composition of water found on Earth … Read more
A team of scientists has proposed building an “interstellar interceptor,” a spacecraft capable of getting up-close and personal with the next asteroid or comet to enter the solar system. So far, astronomers have spotted two such objects whizzing through our star system: The cigar-shaped interstellar visitor ‘Oumuamua, which was first spotted in October 2017 and … Read more
A new method of artificial photosynthesis could get humans one step closer to using the machinery of plants to make fuels. The new system is 10 times more efficient than previous synthetic photosynthesis methods. While natural photosynthesis allows plants to turn carbon dioxide (CO2) and water into carbohydrates using the power of the sun, the … Read more
Archaeologists have unearthed the pyramid of a never-before known ancient Egyptian queen; a cache of coffins, mummies and artifacts; and a series of interconnected tunnels. For the past two years, archaeologists have been working at Saqqara, an archaeological site in Giza, about 20 miles (32 kilometers) south of Cairo. Recently, they discovered a trove of … Read more
Scientists have just announced a breakthrough in nuclear fusion ignition: For the first time the heart of a powerful fusion reactor has briefly generated more energy than was put into it. But experts are urging caution, saying that the breakthrough, while hugely significant, is still a long way from safe, limitless nuclear energy. On Tuesday (Dec. 13), physicists at … Read more
