Red Dwarf solar system too far away for a jaunt on Starbug
The important question from 'The boys from the Dwarf'...
Is it shaped like Felicity Kendalls bottom?
Scientists have detected water vapor wafting from the atmosphere of an exoplanet orbiting around its star within the habitable zone for the first time, according to a paper published in Nature Astronomy. Classified as a super-Earth, a type of planet that’s less than ten times the mass of our home world, K2-18b encircles its …
To be fair, the light year is probably a difficult unit for Joe Bloggs to relate to, because it is so much larger than any distance we can physically experience. They probably feel that with miles, Joe Blogs will at least be able to relate to the base unit, and probably learned at school e.g. the distance from the Earth to the Sun in miles, so they have that as a yardstick. For those of us with at least a passing interest in astronomy cosmology, yes, not helpful.
"the light year is probably a difficult unit for Joe Bloggs to relate to"
The Sun is travelling at approximately 828,000km/h
Speed of light (in a Vacuum) is 299 792 458 m/s or 299,792.458 km/s.
A light year is 9,464,615,782,836.48 km
Therefore the Sun takes roughly 1303 years to travel 1 light year.
"To be fair, the light year is probably a difficult unit for Joe Bloggs to relate to"
The BBC has its own standards for length, volume, mass and electrical energy. These are the London bus, Olympic swimming pool, elephant and home respectively.
I'm surprised that this article did not give distances to the stars in terms of the London bus.
ah, this classical male shavinist pig who dares treat females in the usual boring fashion consistent with treatment by all males in all post-apocalyptic scenarios of a bygone era. I can't wait for a female-directed and starred re-make, when Kevin buttocks are exposed in their sagging glory! Justice ahoy...
The problem with detecting planets is that, at this point in time, all we have is the transition model - and that means that detecting something that is actually Earth-sized is near impossible unless the system is very close and the planets orbit passes between us and their star.
Needless to say, we're not detecting any actually Earth-sized planets hundreds of light-years away any time soon.
Not that we have the means to get there anyway, so . . .
There's some fascinating behind-the-scenes on the intrigue and complications around the reporting of this story, here: https://twitter.com/marinakoren/status/1171873631808438273
Spoiler alert: two teams, same discovery
For a much more detailed look at what the mass / composition of known exoplanets look like plotted on a graph, from Emily Lakdawalla of TPS, starts here. Gets properly deep and geeky and fascinating: https://twitter.com/elakdawalla/status/1171880863186841600
On the flip side, if they are hostile and can travel 10% LS then we don't have to worry until sometime in the mid 21st century. 2063 anyone?
To be honest on an 8G planet their options would be limited space wise, possibly they might be able to get as far as floating habitats but that takes technology. Which they probably can't build without a substantial landmass, sufficient raw materials etc.
I'd be more concerned about the possibility of the Singularity than earth being invaded by hostile Super-Squid from Planet X (tm) or someone pushing the button.
South Korea's Aerospace Research Institute (KARI) yesterday succeeded in its endeavor to send the home-grown Nuri launcher into space, then place a working satellite in orbit.
The launch was scheduled for earlier in June but was delayed by weather and then again by an anomaly in a first-stage oxidizer tank. Its October 2021 launch failed to deploy a dummy satellite, thanks to similar oxidizer tank problems that caused internal damage.
South Korea was late to enter the space race due to a Cold War-era agreement with the US, which prohibited it developing a space program. That agreement was set aside and yesterday's launch is the culmination of more than a decade of development. The flight puts South Korea in a select group of nations that have demonstrated the capability to build and launch domestically designed and built orbital-class rockets.
NASA is finally ready to launch its unmanned Orion spacecraft and put it in the orbit of the Moon. Lift-off from Earth is now expected in late August using a Space Launch System (SLS) rocket.
This launch, a mission dubbed Artemis I, will be a vital stage in the Artemis series, which has the long-term goal of ferrying humans to the lunar surface using Orion capsules and SLS technology.
Earlier this week NASA held a wet dress rehearsal (WDR) for the SLS vehicle – fueling it and getting within 10 seconds of launch. The test uncovered 13 problems, including a hydrogen fuel leak in the main booster, though NASA has declared that everything's fine for a launch next month.
NanoAvionics has unveiled a 4K satellite selfie taken by a GoPro Hero 7 as the company's MP42 microsatellite flew 550km above the Coral Sea and Great Barrier Reef.
Space selfies are hardly new. Buzz Aldrin snapped an image of himself during 1966's Gemini 12 mission, and being able to get a picture of spacecraft can be invaluable when diagnosing issues.
The MP42 microsatellite was launched aboard a SpaceX Falcon 9 earlier this year and the camera (mounted on a space-grade selfie stick) sprung out to snap shots to demonstrate techniques to check for payload deployment, micrometeoroid impacts, and general fault detection.
Amazon Web Services has proudly revealed that the first completely private expedition to the International Space Station carried one of its Snowcone storage appliances, and that the device worked as advertised.
The Snowcone is a rugged shoebox-sized unit packed full of disk drives – specifically 14 terabytes of solid-state disk – a pair of VCPUs and 4GB of RAM. The latter two components mean the Snowcone can run either EC2 instances or apps written with AWS’s Greengrass IoT product. In either case, the idea is that you take a Snowcone into out-of-the-way places where connectivity is limited, collect data in situ and do some pre-processing on location. Once you return to a location where bandwidth is plentiful, it's assumed you'll upload the contents of a Snowcone into AWS and do real work on it there.
An asteroid predicted to hit Earth in 2052 has, for now, been removed from the European Space Agency's list of rocks to be worried about.
Asteroid 2021 QM1 was described by ESA as "the riskiest asteroid known to humankind," at least among asteroids discovered in the past year. QM1 was spotted in August 2021 by Arizona-based Mount Lemmon observatory, and additional observations only made its path appear more threatening.
"We could see its future paths around the Sun, and in 2052 it could come dangerously close to Earth. The more the asteroid was observed, the greater that risk became," said ESA Head of Planetary Defense Richard Moissl.
Scientists at top universities in China propose sending a spacecraft powered by nuclear fission to orbit Neptune – the outermost planet in our solar system – in 2030.
Astronomers have not yet been able to look at Uranus and Neptune in much detail. The best data collected so far comes from NASA's Voyager 2, the only spacecraft to have flown by the big blue orbs way back in 1986 and 1989.
Now, Chinese academics believe it may be possible to launch a spacecraft to orbit Neptune.
NASA engineers had to work fast to avoid another leak affecting the latest Artemis dry run, just hours after an attempt to reboost the International Space Station (ISS) via the Cygnus freighter was aborted following a few short seconds.
The US space agency on Monday rolled the huge Artemis I stack back to its Florida launchpad having worked through the leaks and problems that had beset its previous attempt at fueling the beast in April for an earlier dress rehearsal of the final countdown.
As propellant was loaded into the rocket, controllers noted a hydrogen leak in the quick-disconnect that attaches an umbilical from the tail service mast on the mobile launcher to the core stage of the rocket.
The SOFIA aircraft has returned to New Zealand for a final time ahead of the mission's conclusion later this year.
The Stratospheric Observatory for Infrared Astronomy (SOFIA) is a modified Boeing 747SP aircraft, designed to carry a 2.7-meter reflecting telescope into the stratosphere, above much of Earth's infrared-blocking atmosphere.
A collaboration between NASA and the German Aerospace Center (DLR), development began on the project in 1996. SOFIA saw first light in 2010 and achieved full operational capability in 2014. Its prime mission was completed in 2019 and earlier this year, it was decided that SOFIA would be grounded for budgetary reasons. Operations end "no later than" September 30, 2022, followed by an "orderly shutdown."
Sadly for NASA's mission to take samples from the asteroid Psyche, software problems mean the spacecraft is going to miss its 2022 launch window.
The US space agency made the announcement on Friday: "Due to the late delivery of the spacecraft's flight software and testing equipment, NASA does not have sufficient time to complete the testing needed ahead of its remaining launch period this year, which ends on October 11."
While it appears the software and testbeds are now working, there just isn't enough time to get everything done before a SpaceX Falcon Heavy sends the spacecraft to study a metallic-rich asteroid of the same name.
South Korea's ambition to launch a space industry on the back of a locally developed rocket have stalled, after a glitch saw the countdown halted for its latest attempt to place its Nuri vehicle into orbit.
The launch was planned for Wednesday, but postponed by a day due to unfavourable weather.
The Korea Aerospace and Research Institute tried again but, as the countdown progressed, an anomaly appeared in a first stage oxidizer tank. That issue was considered so serious that Nuri was returned to its assembly facility.
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