LONDON // An Abu Dhabi academic has won a Nasa contest for his ideas on protecting astronauts from high-energy radiation on the long haul to Mars.
Dr George Hitt, an assistant professor at Khalifa University, proposed a reusable shield with which a spacecraft would link up after leaving the Earth’s orbit.
It would be uncoupled before entering Mars’s atmosphere then picked up for the trip back.
Dr Hitt said he was surprised to win the US$5,000 (Dh18,365) first prize for the contest, which he saw advertised in Scientific American magazine.
“I’ve never really received recognition on this level for work that I’ve done in the past,” he said.
At their closest, Mars and Earth are separated by tens of millions of kilometres. Astronauts would be vulnerable to the high-energy radiation, or galactic cosmic rays, that can pass through spacecraft hulls and damage human cells.
Those rays come from outside the solar system and consist of protons, the positively charged particles in the nucleus of atoms.
The outer part of Dr Hitt’s shield would be made of high-density materials to absorb the rays. Inside would be less dense materials to absorb secondary radiation from when the rays hit the shield.
Despite his eagerness in developing ways of travelling to Mars, Dr Hitt is not keen to make the trip, estimated to take 500 days.
“It’s hard to get around the fact that there’s a strong possibility it would be a one-way trip.
“You would be there indefinitely as part of a settlement, or you go there and circumstances prevent you from returning. I have a family. Whoever goes to Mars has really got to think about their attachments on Earth.”
It is estimated that any shield would have to cut out about four-fifths of the galactic cosmic rays to ensure astronauts did not receive an excessive dose.
Dr Hitt, an American who has a PhD from Michigan State University, said his idea for a “passive shield” was more realistic than proposals for “active shields” using electrostatic or magnetic radiation to deflect the rays.
The latter approach, he said, would involve having to put vast structures into space similar to the large particle accelerators built on Earth.
“That gave me the edge in the competition,” Dr Hitt said. “Active shielding that would mitigate galactic cosmic rays is going to be tens or hundreds of times more massive.”
In principle, a shield of the kind proposed by Dr Hitt is “a worthwhile type of technology to develop”, said John Bridges, a professor of planetary science at the UK’s University of Leicester and member of Nasa’s Mars Science Laboratory, who was not involved in the competition.
“This has always been one of the major problems of exploration, the radiation that astronauts are likely to receive,” Prof Bridges said.
Nasa aims to be able to send humans to Mars in the 2030s and Prof Bridges says “it will happen”.
“It’s the next logical step in human exploration of the solar system beyond the Earth-Moon system,” he said.
Dr Hitt is now considering entering a new phase of the Nasa contest, which asks for submissions giving more detail on how ideas would work in practice.
He would need to gather a team of academics with expertise in various disciplines.
newsdesk@thenational.ae
COMPANY%20PROFILE
%3Cp%3E%3Cstrong%3EName%3A%20%3C%2Fstrong%3ESmartCrowd%0D%3Cbr%3E%3Cstrong%3EStarted%3A%20%3C%2Fstrong%3E2018%0D%3Cbr%3E%3Cstrong%3EFounder%3A%20%3C%2Fstrong%3ESiddiq%20Farid%20and%20Musfique%20Ahmed%0D%3Cbr%3E%3Cstrong%3EBased%3A%20%3C%2Fstrong%3EDubai%0D%3Cbr%3E%3Cstrong%3ESector%3A%20%3C%2Fstrong%3EFinTech%20%2F%20PropTech%0D%3Cbr%3E%3Cstrong%3EInitial%20investment%3A%20%3C%2Fstrong%3E%24650%2C000%0D%3Cbr%3E%3Cstrong%3ECurrent%20number%20of%20staff%3A%3C%2Fstrong%3E%2035%0D%3Cbr%3E%3Cstrong%3EInvestment%20stage%3A%20%3C%2Fstrong%3ESeries%20A%0D%3Cbr%3E%3Cstrong%3EInvestors%3A%20%3C%2Fstrong%3EVarious%20institutional%20investors%20and%20notable%20angel%20investors%20(500%20MENA%2C%20Shurooq%2C%20Mada%2C%20Seedstar%2C%20Tricap)%3C%2Fp%3E%0A
At a glance
Global events: Much of the UK’s economic woes were blamed on “increased global uncertainty”, which can be interpreted as the economic impact of the Ukraine war and the uncertainty over Donald Trump’s tariffs.
Growth forecasts: Cut for 2025 from 2 per cent to 1 per cent. The OBR watchdog also estimated inflation will average 3.2 per cent this year
Welfare: Universal credit health element cut by 50 per cent and frozen for new claimants, building on cuts to the disability and incapacity bill set out earlier this month
Spending cuts: Overall day-to day-spending across government cut by £6.1bn in 2029-30
Tax evasion: Steps to crack down on tax evasion to raise “£6.5bn per year” for the public purse
Defence: New high-tech weaponry, upgrading HM Naval Base in Portsmouth
Housing: Housebuilding to reach its highest in 40 years, with planning reforms helping generate an extra £3.4bn for public finances
HOW TO WATCH
Facebook: TheNationalNews
Twitter: @thenationalnews
Instagram: @thenationalnews.com
TikTok: @thenationalnews
Know before you go
- Jebel Akhdar is a two-hour drive from Muscat airport or a six-hour drive from Dubai. It’s impossible to visit by car unless you have a 4x4. Phone ahead to the hotel to arrange a transfer.
- If you’re driving, make sure your insurance covers Oman.
- By air: Budget airlines Air Arabia, Flydubai and SalamAir offer direct routes to Muscat from the UAE.
- Tourists from the Emirates (UAE nationals not included) must apply for an Omani visa online before arrival at evisa.rop.gov.om. The process typically takes several days.
- Flash floods are probable due to the terrain and a lack of drainage. Always check the weather before venturing into any canyons or other remote areas and identify a plan of escape that includes high ground, shelter and parking where your car won’t be overtaken by sudden downpours.
ABU%20DHABI'S%20KEY%20TOURISM%20GOALS%3A%20BY%20THE%20NUMBERS
%3Cp%3EBy%202030%2C%20Abu%20Dhabi%20aims%20to%20achieve%3A%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3E%E2%80%A2%2039.3%20million%20visitors%2C%3C%2Fstrong%3E%20nearly%2064%25%20up%20from%202023%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3E%E2%80%A2%20Dh90%20billion%20contribution%20to%20GDP%2C%3C%2Fstrong%3E%20about%2084%25%20more%20than%20Dh49%20billion%20in%202023%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3E%E2%80%A2%20178%2C000%20new%20jobs%2C%3C%2Fstrong%3E%20bringing%20the%20total%20to%20about%20366%2C000%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3E%E2%80%A2%2052%2C000%20hotel%20rooms%2C%3C%2Fstrong%3E%20up%2053%25%20from%2034%2C000%20in%202023%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3E%E2%80%A2%207.2%20million%20international%20visitors%2C%3C%2Fstrong%3E%20almost%2090%25%20higher%20compared%20to%202023's%203.8%20million%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3E%E2%80%A2%203.9%20international%20overnight%20hotel%20stays%2C%3C%2Fstrong%3E%2022%25%20more%20from%203.2%20nights%20in%202023%3C%2Fp%3E%0A
The%20specs%3A%20Taycan%20Turbo%20GT
%3Cp%3E%3Cstrong%3EEngine%3A%20%3C%2Fstrong%3EDual%20synchronous%20electric%20motors%0D%3Cbr%3E%3Cstrong%3EPower%3A%20%3C%2Fstrong%3E1%2C108hp%0D%3Cbr%3E%3Cstrong%3ETorque%3A%20%3C%2Fstrong%3E1%2C340Nm%0D%3Cbr%3E%3Cstrong%3ETransmission%3A%20%3C%2Fstrong%3ESingle-speed%20automatic%20(front%20axle)%3B%20two-speed%20transmission%20(rear%20axle)%0D%3Cbr%3E%3Cstrong%3ETouring%20range%3A%20%3C%2Fstrong%3E488-560km%0D%3Cbr%3E%3Cstrong%3EPrice%3A%20%3C%2Fstrong%3EFrom%20Dh928%2C400%0D%3Cbr%3E%3Cstrong%3EOn%20sale%3A%20%3C%2Fstrong%3EOrders%20open%3C%2Fp%3E%0A
UAE currency: the story behind the money in your pockets
The National's picks
4.35pm: Tilal Al Khalediah
5.10pm: Continous
5.45pm: Raging Torrent
6.20pm: West Acre
7pm: Flood Zone
7.40pm: Straight No Chaser
8.15pm: Romantic Warrior
8.50pm: Calandogan
9.30pm: Forever Young
UPI facts
More than 2.2 million Indian tourists arrived in UAE in 2023
More than 3.5 million Indians reside in UAE
Indian tourists can make purchases in UAE using rupee accounts in India through QR-code-based UPI real-time payment systems
Indian residents in UAE can use their non-resident NRO and NRE accounts held in Indian banks linked to a UAE mobile number for UPI transactions
Formula Middle East Calendar (Formula Regional and Formula 4)
Round 1: January 17-19, Yas Marina Circuit – Abu Dhabi
Round 2: January 22-23, Yas Marina Circuit – Abu Dhabi
Round 3: February 7-9, Dubai Autodrome – Dubai
Round 4: February 14-16, Yas Marina Circuit – Abu Dhabi
Round 5: February 25-27, Jeddah Corniche Circuit – Saudi Arabia
Skewed figures
In the village of Mevagissey in southwest England the housing stock has doubled in the last century while the number of residents is half the historic high. The village's Neighbourhood Development Plan states that 26% of homes are holiday retreats. Prices are high, averaging around £300,000, £50,000 more than the Cornish average of £250,000. The local average wage is £15,458.
THE%20SPECS
%3Cp%3EBattery%3A%2060kW%20lithium-ion%20phosphate%3Cbr%3EPower%3A%20Up%20to%20201bhp%3Cbr%3E0%20to%20100kph%3A%207.3%20seconds%3Cbr%3ERange%3A%20418km%3Cbr%3EPrice%3A%20From%20Dh149%2C900%3Cbr%3EAvailable%3A%20Now%3C%2Fp%3E%0A
Specs
Engine: Duel electric motors
Power: 659hp
Torque: 1075Nm
On sale: Available for pre-order now
Price: On request
Europe's top EV producers
- Norway (63% of cars registered in 2021)
- Iceland (33%)
- Netherlands (20%)
- Sweden (19%)
- Austria (14%)
- Germany (14%)
- Denmark (13%)
- Switzerland (13%)
- United Kingdom (12%)
- Luxembourg (10%)
Source: VCOe
Shipping%20and%20banking%20
%3Cp%3EThe%20sixth%20sanctions%20package%20will%20also%20see%20European%20insurers%20banned%20from%20covering%20Russian%20shipping%2C%20more%20individuals%20added%20to%20the%20EU's%20sanctions%20list%20and%20Russia's%20Sberbank%20cut%20off%20from%20international%20payments%20system%20Swift.%3C%2Fp%3E%0A
Company%C2%A0profile
%3Cp%3E%3Cstrong%3ECompany%20name%3A%20%3C%2Fstrong%3EHayvn%3Cbr%3E%3Cstrong%3EStarted%3A%20%3C%2Fstrong%3E2018%3Cbr%3E%3Cstrong%3EFounders%3A%20%3C%2Fstrong%3EChristopher%20Flinos%2C%20Ahmed%20Ismail%3Cbr%3E%3Cstrong%3EBased%3A%20%3C%2Fstrong%3EAbu%20Dhabi%2C%20UAE%3Cbr%3E%3Cstrong%3ESector%3A%20%3C%2Fstrong%3Efinancial%3Cbr%3E%3Cstrong%3EInitial%20investment%3A%20%3C%2Fstrong%3Eundisclosed%3Cbr%3E%3Cstrong%3ESize%3A%3C%2Fstrong%3E%2044%20employees%3Cbr%3E%3Cstrong%3EInvestment%20stage%3A%20%3C%2Fstrong%3Eseries%20B%20in%20the%20second%20half%20of%202023%3Cbr%3E%3Cstrong%3EInvestors%3A%20%3C%2Fstrong%3EHilbert%20Capital%2C%20Red%20Acre%20Ventures%3C%2Fp%3E%0A
How to protect yourself when air quality drops
Install an air filter in your home.
Close your windows and turn on the AC.
Shower or bath after being outside.
Wear a face mask.
Stay indoors when conditions are particularly poor.
If driving, turn your engine off when stationary.
