Space News & Blog Articles

Alpha Centauri is the nearest star system to our own, sitting just over four light years away and it’s fascinated astronomers and storytellers alike for generations. With conventional rockets, reaching it would take hundreds of thousands of years, even for the Orion spacecraft it would take around 100,000 years. But a team of researchers at Texas A&M University think they may have taken the first tentative step towards a technology that could get us there in just twenty years.

A few years ago, I attempted to make an origami (paper folded) animal. Armed with a square of paper and what I can only describe as misplaced confidence, I managed to produce something that looked vaguely threatening rather than like a flapping crane. If I struggled that much with a single sheet of paper on a kitchen table, I can’t begin to imagine what it takes to apply the same principle to a satellite antenna destined for space. But that is exactly what a team of engineers in Japan has just pulled off and the results are really quite extraordinary.

Space travel has taught us valuable lessons for living and working in outer space, specifically regarding how microgravity (often mistakenly called zero-gravity) impacts the human body during short- and long-term spaceflight. This includes decreased muscle and bone mass, fluid shifts, reduced heart rate, psychological health, compromised immune system, and radiation exposure. But with agencies like NASA aspiring to build a lunar base and establish a long-term presence on the Moon, and eventually Mars, how could space travel impact potentially having babies in space?

We don't know for sure how many dwarf galaxies are attached to the Milky Way because they're dim and hard to see. There's at least 50 of them, and astronomers keep finding more. Among the dwarf galaxies are the ultra-faint dwarf galaxies, the smallest and least bright of them all.

Scientists know that the behaviour of stars can dictate planetary habitability. Research shows that young stars emit powerful radiation that can strip planetary atmospheres away. And without an atmosphere, it's extremely unlikely that life could exist.

A team of scientists at the University of Virginia is using data from an instrument in Arizona to study cosmic structure and the result is the largest 3D map of the Universe ever created. The Dark Energy Spectroscopic Instrument (DESI) sits on a telescope high above the Sonoran Desert, and is one of the tools of choice to get a handle on the mystery of dark energy by charting the positions of galaxies and other objects.