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By zikalify
UKSA and Rolls-Royce to study nuclear-powered space travel
by Paul Hill
The UK Space Agency (UKSA) and Rolls-Royce have signed a research contract that will bring the two together to investigate nuclear energy as a source for deeper space exploration. UKSA said that nuclear is a plentiful source of energy that could propel spacecraft at huge speeds which could “revolutionise” space travel.
In terms of results, nuclear propulsion is expected to be twice as efficient as chemical engines which are in use today and a trip to Mars could be cut in half and take just three to four months. According to the government, the new agreement will also generate skilled employment across the country.
Commenting on the partnership, UKSA Chief Executive Dr Graham Turnock said:
Aside from faster travel, nuclear propulsion would help cut astronauts’ dosage of radiation that they get hit with when in space. UKSA said that the longer you spend in space, the greater the amount of radiation that you’re exposed to so faster journeys would mean less radiation exposure.
In the outer Solar System, the sunlight is too dim to power solar panels and fuel cells are not a reliable store of energy according to UKSA. Using nuclear power, therefore, would help to enable more missions in the outer Solar System.
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By News Staff
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By indospot
Samsung Galaxy S20 FE 5G unboxing and first impressions
by João Carrasqueira
Top-tier smartphones, especially from brands like Samsung and Apple, are getting incredibly expensive. Because that kind of experience isn't feasibly affordable for everyone, Samsung introduced the Galaxy S20 FE 5G, a cheaper variant of its flagship phone from earlier in the year. This phone packs quite a punch, but it brings down the price to $699, while the standard Galaxy S20 original launched at $999.
The Galaxy S20 FE 5G comes with a Qualcomm Snapdragon 865 chipset, even in Europe, though there is an Exynos 990-powered variant of the phone (which isn't available in the U.S.). It also has 6GB of RAM and 128GB of internal storage, depending on the configuration you choose. The display has been toned down to Full HD+ resolution, but it still supports a 120Hz refresh rate.
The camera setup still includes three rear cameras and one selfie camera on the back, but some of the specs have been downgraded to bring the price down, like a lower resolution for the telephoto camera or smaller pixels for the ultra-wide lens.
Overall, though, the Galaxy S20 aims to be Samsung's value king, and it might just be exactly that. We'll be working on a full review in the next couple of weeks, but you can watch our initial hands-on below.
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By Ather Fawaz
"Mars, here we come!!" exclaims Elon Musk despite explosive ending to Starship's test flight
by Ather Fawaz
Image via Trevor Mahlmann (YouTube) The Starship initiative by SpaceX is meant to make spaceflights to Mars a reality. After a scrubbed launch yesterday courtesy of an auto-abort procedure in the Starship's Raptor engines, once again, SpaceX geared up for a re-run of the test a few hours back. This time, Starship SN8 successfully took flight from its test site in Boca Chica, Texas. A trimmed version of the complete event is embedded below from Trevor Mahlmann's YouTube channel.
Compared to the scrubbed launch, things went better on this one, but not entirely. The gargantuan 160-feet tall rocket, propelled by three Raptor engines, took flight, and intended to rise to a height of 41,000 ft (12,500 m). SpaceX founder Elon Musk called the ascent a success, but it's not clear whether the rocket reached its intended altitude. Nevertheless, after reaching its highest point, the rocket began its journey back to its earthly test site.
Image via Trevor Mahlmann (YouTube) The SN8 prototype performed a spectacular mid-air flipping maneuver to set itself on course to land vertically back to the earth—a feat we've all grown accustomed to seeing with SpaceX's Falcon 9 rocket. The SN8 executed the landing flip successfully, and SpaceX tweeted a closer look at the event as it happened. Impressively, SpaceX claimed that by doing so, the SN8 became the largest spacecraft to perform a landing maneuver of this sort.
But as the rocket prepared to touch down and its boosters tried to slow down its descent to cushion the landing, the rocket's fuel header tank pressure got low. This caused the "touchdown velocity to be high & RUD," during the landing burn, Musk tweeted. Unfortunately, this meant that upon touchdown, the Starship SN8 prototype exploded into flames.
Image via SpaceX Livestream Notwithstanding the fiery, unfortunate event right at the final few moments, SpaceX and Musk hailed the test as a success. For the company, "SN8 did great! Even reaching apogee would’ve been great, so controlling all way to putting the crater in the right spot was epic!!" Musk tweeted, "We got all the data we needed. Congrats SpaceX team hell yeah!!", he continued; before following up with another tweet exclaiming "Mars, here we come!!"
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By Ather Fawaz
China launches Chang'e-5 mission to extract and bring lunar rock samples to Earth
by Ather Fawaz
Image via National Geographic China successfully launched its Chang'e-5 mission on Monday whereby it is sending a spacecraft to the Moon to collect rock samples. If everything goes according to plan, the lander portion of the spacecraft will touch down on the lunar surface by the end of this week and will have approximately 14 days—or the length of a single day on the satellite—to collect the samples and bring them back to Earth.
The spacecraft took off from the Wenchang space site at Hainan Island in China on Monday. Unlike previous missions, China was open about live-streaming and consistently sharing information about the launch procedures. The entire event was live-streamed by Chinese state media without any delay, showing the growing confidence that the nation has in its space program.
The mission is being hailed as the most ambitious program in China's space history. Not only will it be the first attempt at collecting lunar rock samples in over forty years, but it also sets the nation on course to become only the third country to bring pieces of the moon back to Earth, joining the ranks of the U.S. and Soviet Russia who each completed this feat with the Apollo Missions and the Luna robotic landings, respectively.
China plans to land Chang'e-5 on the Mons Rümker, which is an isolated volcanic formation that is located in the northwest part of the Moon's near side. It's also much younger than the craters that the Apollo astronauts visited. Once there, the spacecraft is slated to retrieve more than four pounds of lunar samples. For contrast, the three successful Soviet Luna missions brought close to 0.625 pounds while NASA’s Apollo astronauts ferried 842 pounds of moon rock and soil back to the Earth.
From liftoff to touchdown back to Earth, the entire mission is scheduled to take less than a month. China hopes that the successful completion of Chang’e-5 will be a stepping stone towards establishing an international lunar research station before colonizing the moon by the next decade.
Source: The New York Times via Engadget
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