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Sirius
Sirius is the brightest star in the nighttime sky. Sirius can be seen from every inhabited region of the Earth's surface. There are a few unsolved mysteries regarding Sirius.
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Space & Time News
November 11, 2026
Nov. 10, 2026 A breakthrough in telescope imaging could reveal countless alien worlds that have been hiding in plain sight. Scientists developed a new technique that uses a digital twin of the James Webb Space Telescope to remove the overwhelming glare of stars, ...
Nov. 9, 2026 NASA is putting $500,000 on the line in a new competition to accelerate the development of advanced electric rocket engines for satellites and future space exploration. The AMPERE Challenge will reward up to two U.S. companies with cash prizes and ...
Nov. 9, 2026 For the first time, a robot has autonomously built part of a structure in space, demonstrating a breakthrough that could fundamentally change space exploration. The technology could one day allow scientists to construct enormous telescopes, ...
Nov. 9, 2026 NASA has revealed an accelerated plan to land astronauts on the Moon in 2028, with SpaceX and Blue Origin developing competing lunar landers and a crucial orbital test scheduled for 2027. Faster rocket preparations, new lightweight spacesuits, and ...
Nov. 6, 2026 After nearly 22 years of exploring the universe’s most violent explosions, NASA’s Swift Observatory has re-entered Earth’s atmosphere over Indonesia. Originally designed to last just two years, the pioneering space telescope transformed our ...
Nov. 4, 2026 NASA is exploring a daring plan to save the legendary Hubble Space Telescope from its eventual fiery plunge into Earth's atmosphere. After more than 35 years of groundbreaking discoveries, Hubble is slowly losing altitude, and without intervention, ...
Nov. 3, 2026 Europe’s Hera spacecraft has captured its first clear view of two asteroids involved in NASA’s historic 2022 experiment to redirect a potentially dangerous space rock. Now approaching the pair, Hera will investigate the mysterious aftermath of ...
Nov. 3, 2026 NASA’s Voyager 1 is approaching an extraordinary milestone nearly 50 years after its launch, even as engineers battle dwindling power and mysterious technical problems. A clever energy-saving maneuver has extended the spacecraft’s scientific ...
Nov. 2, 2026 Mysterious particles called neutrinos constantly stream through our bodies, and scientists are now detecting incredibly powerful versions arriving from distant cosmic sources using a massive ...
Nov. 2, 2026 NASA’s Perseverance rover has set a historic record by traveling 28.10 miles across Mars, farther than any vehicle has ever driven on another world. Armed with groundbreaking autonomous navigation ...
Oct. 28, 2026 NASA’s Artemis I mission has revealed that cosmic radiation near the Moon is higher than in Earth orbit, but not by as much as scientists might expect. Tiny experimental detectors also uncovered ...
Oct. 21, 2026 Scientists have cracked a 178-year-old mystery surrounding a train delayed by a solar storm, revealing that the famous incident happened in 1848 rather than 1841. The discovery rewrites the early history of space weather and highlights a threat that ...
Latest Headlines
updated 12:56 pm ET
Nov. 11, 2026 A provocative new cosmological model suggests the Universe could be 26.7 billion years old and might not need dark matter or dark energy to explain its behavior. University of Ottawa researchers ...
Nov. 10, 2026 NASA's Hubble Space Telescope has revealed surprising new details about a mysterious, 93-billion-mile-long cloud of dark, fluffy dust that may have ...
Nov. 10, 2026 A century-old theory about the origins of life on Earth may be wrong. New research from the University of Cambridge suggests that comets traveled too ...
Nov. 10, 2026 After more than a year of simulated life on Mars, four NASA volunteers have finally emerged from isolation, bringing a remarkable space exploration ...
Nov. 8, 2026 More than a century after Einstein revolutionized our understanding of gravity, scientists have uncovered a surprising new phenomenon hidden within ...
Nov. 8, 2026 A nuclear explosion might save Earth from a deadly asteroid, but new research suggests that hitting the wrong side could make the difference between success and disaster. Scientists found that an ...
Nov. 7, 2026 Mysterious gas emissions and fresh volcanic fissures suggest that Mars may not be geologically dead after all, with hot magma potentially still active deep underground. The discovery could point to ...
Nov. 7, 2026 The Vera C. Rubin Observatory has already uncovered two previously unknown companions of the Milky Way using preliminary observations covering just ...
Nov. 6, 2026 Astronomers have discovered a strange double ring of planetary wreckage around a dead star, revealing a possible preview of our Solar System's distant future. The two rings are separated by a ...
Nov. 6, 2026 November's night sky is packed with celestial wonders, from bright meteor fireballs and a close pairing of Mars and Jupiter to a spectacular ...