Light sails powered by lasers could carry a probe to Alpha Centauri in 20 years.…
Browsing: Space
Space refers to the vast, seemingly infinite expanse beyond Earth’s atmosphere where planets, stars, galaxies, and cosmic phenomena exist. It is a realm defined by extreme conditions—near vacuum, intense radiation, and temperatures ranging from blistering heat to freezing cold. Space exploration has revealed a universe rich with complexity, from black holes and exoplanets to the cosmic microwave background that offers clues to the Big Bang. For scientists, space is both a frontier and a laboratory, offering insights into fundamental physics, the origins of the universe, and the potential for life beyond Earth. It continues to inspire curiosity, innovation, and a deeper sense of our place in the cosmos.
Astronomers have long wondered how galaxies form and evolve. The Next Generation Very Large Array…
Ancient dwarf galaxy reconstructed with MilkyWay@home volunteer computer. Astrophysicists for the first time have calculated…
Alcyoneus, the largest known radio galaxy, stretches 16 million lightyears, offering new clues about cosmic…
Sixty years ago, astronaut John Glenn became the first American to orbit the Earth. In…
Hubble’s detailed image of Arp 298 showcases the interacting galaxies NGC 7469 and IC 5283.…
What Is “Redshift?” ‘Redshift’ is a key concept for astronomers. The term can be understood…
IXPE’s first image focuses on Cassiopeia A, blending data with Chandra to enhance analysis of…
SoFIE explores fire’s behavior in space, benefiting space habitats and Earth fire safety. Americans can…
The next commercial cargo mission to the space station, celebrating the first year of Perseverance…
The Webb team continues to make progress in aligning the observatory’s mirrors. Engineers have completed…
2021 set records in space travel. In 2022, nearly 200 launches are planned, with a…
ESA’s Izaña-1 laser ranging station in Tenerife, Spain, has recently undergone months of testing and…
The ExoMars Orbiter captured a chaotic Martian landscape near Hooke Crater, featuring dust devil tracks…
A fresh supply of 8,300 pounds (3,800 kilograms) of scientific investigations and cargo launched from…
Volcanoes, impact craters, tectonic faults, river channels, and a lava sea: a vast amount of…
A proposed laser-thermal propulsion system could reduce Mars transit times to 45 days by using…
The first set of middle-schoolers in the agency’s “You’ve Got Perseverance!” campaign was honored with…