New! Sign up for our free email newsletter.
Reference Terms
from Wikipedia, the free encyclopedia

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.

Related Stories
 


Space & Time News

November 11, 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, ...
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 ...
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, ...
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 ...
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 ...
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, ...
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 ...
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 ...
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 ...
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 ...
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 ...
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