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Orbital Assembly is now aiming to launch not one but two space stations with tourist accommodation: Voyager Station, the renamed original design, is now scheduled to accommodate 400 people and to open in 2027, while new concept Pioneer Station, housing 28 people, could be operational in just three years.

The goal, says Orbital Assembly, is to run a space “business park” home to offices as well as tourists.

Space tourism seems closer than ever before — over the past year, billionaire Virgin founder Richard Branson blasted into suborbital space with his company Virgin Galactic, while Star Trek actor William Shatner became the oldest person in space thanks to a jaunt with Blue Origin.

You don’t even have to cover your mouth. Virtual reality has come a long way in recent years, creating unreal environments and unprecedented tactile experiences. However, researchers have struggled to recreate an adequate simulation of our most precious senses of touch, like kissing.


You would be forgiven if you thought that the current wave of virtual reality headsets was a modern phenomenon. There were obviously some awkward—and failed—attempts to capitalize on the virtual reality craze of the early 1990s and for most people, this is as far back as virtual reality goes. The truth is that virtual reality is much, much older.

The science behind virtual reality was first explored in a practical sense as far back as the 1800s, but some could argue that it goes all the way back to Leonardo Da Vinci and the first explorations of perspective in paintings of the era. So how do virtual reality headsets work, and how come it took so long for them to become, well, a reality?

We still don’t know just how the first life emerged on Earth. One suggestion is that the building blocks arrived here from space; now, a new study of several carbon-rich meteorites has added weight to this idea.

Using new, extremely sensitive analysis techniques for these meteorites, a team led by scientists from Hokkaido University in Japan detected organic compounds that form the very backbone of the nucleic acid molecules common to all life as we know it – DNA and RNA.

The researchers analyzed three carbon-rich meteorites: the Murchison meteorite which landed in Australia in 1969, the Murray meteorite which landed in Kentucky in 1950, and the Tagish Lake meteorite which fell to Earth in 2000, landing in British Columbia.

Using new analyses, scientists have just found the last two of the five informational units of DNA and RNA that had yet to be discovered in samples from meteorites. While it is unlikely that DNA could be formed in a meteorite, this discovery demonstrates that these genetic parts are available for delivery and could have contributed to the development of the instructional molecules on early Earth. The discovery, by an international team with NASA researchers, gives more evidence that chemical reactions in asteroids can make some of life’s ingredients, which could have been delivered to ancient Earth by meteorite impacts or perhaps the infall of dust.

All DNA and RNA, which contains the instructions to build and operate every living being on Earth, contains five informational components, called nucleobases. Until now, scientists scouring had only found three of the five. However, a recent analysis by a team of scientists led by Associate Professor Yasuhiro Oba of Hokkaido University, Hokkaido, Japan, identified the final two nucleobases that have eluded scientists.

Nucleobases belong to classes of organic molecules called purines and pyrimidines, which have a wide variety. However, it remains a mystery why more types haven’t been discovered in meteorites so far.

“If one made a research grant application to work on time travel it would be dismissed immediately,” writes the physicist Stephen Hawking in his posthumous book Brief Answers to the Big Questions. He was right. But he was also right that asking whether time travel is possible is a “very serious question” that can still be approached scientifically.

Arguing that our current understanding cannot rule it out, Hawking, it seems, was cautiously optimistic. So where does this leave us? We cannot build a machine today, but could we in the future?

Let’s start with our everyday experience. We take for granted the ability to call our friends and family wherever they are in the world to find out what they are up to right now. But this is something we can never actually know. The signals carrying their voices and images travel incomprehensibly fast, but it still takes a finite time for those signals to reach us.