Space News & Blog Articles

The James Webb Space Telescope (JWST) was designed to probe the mysteries of the Universe, not the least of which is what the first galaxies looked like. These galaxies formed during the Epoch of Reionization (aka. “Cosmic Dawn”), which lasted from about 100 to 500 million years after the Big Bang. By observing these galaxies and comparing them to ones that see closer to our own today, astronomers hope to test the laws of physics on the grandest of scales and what role (if any) Dark Matter and Dark Energy have played.

SpaceX’s second private astronaut mission to the International Space Station, (ISS), Axiom-2 aka Ax-2, which is sponsored Axiom Space, received a “go” for launch from NASA on May 15 followed by a stamp of approval from Mother Nature on May 19, and finally a completion of the Launch Readiness Review (LRR) on May 20. Liftoff is currently scheduled for May 21 at 5:37pm EDT (2:37pm PDT) from NASA Kennedy Space Center’s historic launch complex 39A, which was the launch site for all crewed Apollo-Saturn V launches starting with Apollo 8, along with Skylab, dozens of Space Shuttle launches, and starting in 2017 with SpaceX.

Supernovae are brilliant explosions that can, for a time, outshine an entire galaxy. They come in two broad types: Type I and Type II. Type II supernovae are what are known as core-collapse supernovae. They occur when a massive dying star fuses ever heavier elements in its core until it runs out of energy options and its core collapses under its own weight, which triggers the explosion. Type I supernovae occur when…well, it’s complicated. But we’re learning more thanks to a new observation by radio astronomers.

NASA has announced a second lunar lander provider for its Artemis program, choosing Blue Origin’s National Team to deliver astronauts to the Moon’s south pole as early as 2029. Blue Origin’s lander will be part of the Artemis V mission. They join SpaceX, whose Starship is already slated to ferry astronauts to the lunar surface for Artemis III and IV.

Most astronomers know the struggle of getting time on the world’s most powerful telescopes. Even though this observing time might literally be the most important thing to their career prospects, there are always more studies than there is time available to perform them. Typically, each telescope system has a panel of experts that determine which proposals will get observational time and which won’t. However, the European Southern Observatory (ESO), based in Germany but with observational telescopes in Chile, decided to try a new proposal review method – peer review.

Earth experiences seasonal changes because of how its axis is tilted (23.43° relative to the Sun’s equator), causing one hemisphere to always be tilted towards the Sun (and the other away) for different parts of the year. However, because of gravitational interactions between the Earth, Sun, Moon, and other planets of the Solar System, Earth has experienced changes in its orientation (obliquity) over the course of eons. This has led to significant changes in Earth’s climate, particularly the recession and expansion of ice sheets due to significant variations in the distribution of sunlight and seasonal changes.

In 1958, the first satellites launched by the United States (Explorer 1 and 3) detected a massive radiation belt around planet Earth. This confirmed something that many scientists suspected before the Space Age began: that energetic particles emanating from the Sun (solar wind) were captured and held around the planet by Earth’s magnetosphere. This region was named the Van Allen Belt in honor of University of Iowa professor James Van Allen who led the research effort. As robotic missions explored more of the Solar System, scientists discovered similar radiation belts around Jupiter, Saturn, Uranus, and Neptune.