Constellations
Constellations
561 articles in this category.
Constellations
In May 1986, Leonid Kizim and Vladimir Solovyov left the newly opened Mir, crossed 2,500 kilometres to Salyut 7, and returned carrying 350 to 400 kilograms of instruments — the only human voyage ever made from one space station to another
Constellations
In July 2026, German rocket startup Isar Aerospace signed a Nova Scotia launch-site agreement whose disclosed quarterly fee schedule totals US$112.5 million before per-launch charges, with plans for up to 40 flights a year from a Spectrum rocket that has never reached orbit
Constellations
In 2026, the FCC authorized radio operations for Reflect Orbital’s first 18-metre space mirror, a single demonstration for a proposed 50,000-satellite system that one astronomy model says could raise the natural night-sky background by 200% to 300%
Constellations
We tend to assume life needs a star to begin, but a 2025 study found that some moons carried into deep space by planets expelled during supernova explosions could preserve subsurface oceans for billions of years — heated not by sunlight, but by the repeated gravitational flexing of their orbits.
Constellations
SpaceX has asked to place 100,000 Gen3 satellites into 20 orbital shells split between 323–327.5 and 473–477.5 kilometers above Earth, each weighing up to 2,500 kilograms — more than 200 million kilograms of spacecraft before a single launch vehicle or drop of propellant is counted
Constellations
An exoplanet 124 light-years away may harbour a global ocean beneath a hydrogen-rich atmosphere. Webb has produced two tentative hints of dimethyl sulfide—a gas produced mainly by marine microorganisms on Earth—but independent analyses dispute whether the molecule has been detected at all, leaving scientists divided over what the data mean.
Constellations
Titan has rivers, rainfall, lakes and a slow hydrological cycle exactly like Earth's, except that every drop of it is liquid methane and the rock the rivers run over is water ice
Constellations
Voyager 1 crossed into interstellar space in 2012 and Voyager 2 followed in 2018, yet both encountered the edge of the heliosphere at almost the same distance from the Sun—121.6 and roughly 119 astronomical units—even though they crossed in different directions and during very different phases of the solar cycle, a similarity Johns Hopkins scientists said they could not yet explain.
Constellations
James Webb has found evidence for thick water-ice clouds on Epsilon Indi Ab, one of the closest Jupiter-like worlds we can study directly — a discovery that didn’t overturn every atmospheric model, but exposed how many of them had been leaving out the very thing now shaping the planet’s sky.
Constellations
In March 2025, Australia's new SKA-Low telescope photographed 85 galaxies using just 1,024 of its planned 131,072 antennas — less than one percent of its full power, and the image was already beyond what scientists hoped for
Constellations
Two enormous structures — the Giant Arc and the Big Ring — appear in the same region of deep space at the same cosmic distance, a pairing so unexpected that Alexia Lopez, one of the astronomers who discovered them, says current cosmology struggles to explain even one of them, let alone both together.
Constellations
The Voyager 1 probe, launched in 1977, is now so far from Earth that a radio signal travelling at the speed of light takes over 22 hours to reach it, and it is still sending data back from interstellar space on a power source the size of a car battery
Constellations
If you could travel to another star system at almost the speed of light, you might age only a few years on the journey — while the people you left behind could age by generations, or even be gone for centuries.
Constellations
A galaxy confirmed this January formed just 290 million years after the Big Bang, and the part astronomers cannot explain is that it is far too large, far too soon, as if the early universe was building things it was not supposed to be able to build yet.
Constellations