Nasa is set to launch three sounding rockets during the total solar eclipse on April 8 to study how the Earth’s upper atmosphere is affected when a portion of the planet is dimmed.
The move is part of the Atmospheric Perturbations around Eclipse Path (Apep) project, in which rockets will blast off from a spaceport in Virginia.
Sounding rockets carry scientific instruments into key regions of space, with this project aimed at measuring disturbances in the Earth’s ionosphere that are created when the Moon temporarily eclipses the Sun.
These can interfere with communications on Earth, as the eclipse causes a decrease in solar radiation that reduces ionisation levels, ultimately affecting radio waves.
“It’s an electrified region that reflects and refracts radio signals, and also impacts satellite communications as the signals pass through,” said Aroh Barjatya, mission leader and professor of engineering physics at Embry-Riddle Aeronautical University in Florida.
“Understanding the ionosphere and developing models to help us predict disturbances is crucial to making sure our increasingly communication-dependent world operates smoothly.”
The rockets are expected to lift off at three set times, 45 minutes before, during and 45 minutes after the eclipse is at its peak in Virginia.
It is crucial for the scientists to make this mission a success, as the next total solar eclipse will not take place in the contiguous US until 2044.
These same rockets were previously launched from New Mexico during an annular solar eclipse in October and new instruments have been installed for this mission.
The last mission helped scientists record a sharp reduction in the density of charged particles as the annular eclipse shadow passed over the atmosphere.
“We saw the perturbations capable of affecting radio communications in the second and third rockets but not during the first rocket that was before peak local eclipse,” said Prof Barjatya.
“We are super-excited to relaunch them during the total eclipse, to see if the perturbations start at the same altitude and if their magnitude and scale remain the same.”
The Apep rockets are expected to reach a maximum altitude of 420km to measure charged and neutral-particle density and surrounding electric and magnetic fields.
They will carry instruments that will investigate whether any disturbances are caused by the eclipse.
The launches will be streamed live on Nasa's website and YouTube channel, with a broadcast set to begin at 10.30pm UAE time.
The eclipse will be visible in Mexico, through the US from Texas to Maine, and in parts of Canada.
The first place to experience totality will be Mexico's Pacific coast at about 11.07am PDT (10.07pm UAE time), on April 8.
The path of the eclipse will then continue into the US, moving through Texas first and then travelling through Oklahoma, Arkansas, Missouri, Illinois, Kentucky, Indiana, Ohio, Pennsylvania, New York, Vermont, New Hampshire and Maine.
The eclipse will be visible in Canada from southern Ontario then Quebec, New Brunswick, Prince Edward Island and Nova Scotia.
It will exit continental North America on the Atlantic coast of Newfoundland, Canada, at 5.16pm NDT (11.46pm UAE time).
2022's partial solar eclipse in the UAE - in pictures
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SERIE A FIXTURES
Saturday Benevento v Atalanta (2pm), Genoa v Bologna (5pm), AC Milan v Torino (7.45pm)
Sunday Roma v Inter Milan (3.30pm), Udinese v Napoli, Hellas Verona v Crotone, Parma v Lazio (2pm), Fiorentina v Cagliari (9pm), Juventus v Sassuolo (11.45pm)
Monday Spezia v Sampdoria (11.45pm)
Long Shot
Director: Jonathan Levine
Starring: Charlize Theron, Seth Rogan
Four stars
Company profile
Date started: 2015
Founder: John Tsioris and Ioanna Angelidaki
Based: Dubai
Sector: Online grocery delivery
Staff: 200
Funding: Undisclosed, but investors include the Jabbar Internet Group and Venture Friends
Benefits of first-time home buyers' scheme
- Priority access to new homes from participating developers
- Discounts on sales price of off-plan units
- Flexible payment plans from developers
- Mortgages with better interest rates, faster approval times and reduced fees
- DLD registration fee can be paid through banks or credit cards at zero interest rates
The specs: 2018 Chevrolet Trailblazer
Price, base / as tested Dh99,000 / Dh132,000
Engine 3.6L V6
Transmission: Six-speed automatic
Power 275hp @ 6,000rpm
Torque 350Nm @ 3,700rpm
Fuel economy combined 12.2L / 100km
Should late investors consider cryptocurrencies?
Wealth managers recommend late investors to have a balanced portfolio that typically includes traditional assets such as cash, government and corporate bonds, equities, commodities and commercial property.
They do not usually recommend investing in Bitcoin or other cryptocurrencies due to the risk and volatility associated with them.
“It has produced eye-watering returns for some, whereas others have lost substantially as this has all depended purely on timing and when the buy-in was. If someone still has about 20 to 25 years until retirement, there isn’t any need to take such risks,” Rupert Connor of Abacus Financial Consultant says.
He adds that if a person is interested in owning a business or growing a property portfolio to increase their retirement income, this can be encouraged provided they keep in mind the overall risk profile of these assets.
'The worst thing you can eat'
Trans fat is typically found in fried and baked goods, but you may be consuming more than you think.
Powdered coffee creamer, microwave popcorn and virtually anything processed with a crust is likely to contain it, as this guide from Mayo Clinic outlines:
Baked goods - Most cakes, cookies, pie crusts and crackers contain shortening, which is usually made from partially hydrogenated vegetable oil. Ready-made frosting is another source of trans fat.
Snacks - Potato, corn and tortilla chips often contain trans fat. And while popcorn can be a healthy snack, many types of packaged or microwave popcorn use trans fat to help cook or flavour the popcorn.
Fried food - Foods that require deep frying — french fries, doughnuts and fried chicken — can contain trans fat from the oil used in the cooking process.
Refrigerator dough - Products such as canned biscuits and cinnamon rolls often contain trans fat, as do frozen pizza crusts.
Creamer and margarine - Nondairy coffee creamer and stick margarines also may contain partially hydrogenated vegetable oils.
The specs
Engine: 2x201bhp AC Permanent-magnetic electric
Transmission: n/a
Power: 402bhp
Torque: 659Nm
Price estimate: Dh200,000
On sale: Q3 2022
UAE currency: the story behind the money in your pockets
Our legal consultant
Name: Hassan Mohsen Elhais
Position: legal consultant with Al Rowaad Advocates and Legal Consultants.
What is a robo-adviser?
Robo-advisers use an online sign-up process to gauge an investor’s risk tolerance by feeding information such as their age, income, saving goals and investment history into an algorithm, which then assigns them an investment portfolio, ranging from more conservative to higher risk ones.
These portfolios are made up of exchange traded funds (ETFs) with exposure to indices such as US and global equities, fixed-income products like bonds, though exposure to real estate, commodity ETFs or gold is also possible.
Investing in ETFs allows robo-advisers to offer fees far lower than traditional investments, such as actively managed mutual funds bought through a bank or broker. Investors can buy ETFs directly via a brokerage, but with robo-advisers they benefit from investment portfolios matched to their risk tolerance as well as being user friendly.
Many robo-advisers charge what are called wrap fees, meaning there are no additional fees such as subscription or withdrawal fees, success fees or fees for rebalancing.
500 People from Gaza enter France
115 Special programme for artists
25 Evacuation of injured and sick
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How has net migration to UK changed?
The figure was broadly flat immediately before the Covid-19 pandemic, standing at 216,000 in the year to June 2018 and 224,000 in the year to June 2019.
It then dropped to an estimated 111,000 in the year to June 2020 when restrictions introduced during the pandemic limited travel and movement.
The total rose to 254,000 in the year to June 2021, followed by steep jumps to 634,000 in the year to June 2022 and 906,000 in the year to June 2023.
The latest available figure of 728,000 for the 12 months to June 2024 suggests levels are starting to decrease.
The specs: 2019 Haval H6
Price, base: Dh69,900
Engine: 2.0-litre turbocharged four-cylinder
Transmission: Seven-speed automatic
Power: 197hp @ 5,500rpm
Torque: 315Nm @ 2,000rpm
Fuel economy, combined: 7.0L / 100km
More from Aya Iskandarani
Pharaoh's curse
British aristocrat Lord Carnarvon, who funded the expedition to find the Tutankhamun tomb, died in a Cairo hotel four months after the crypt was opened.
He had been in poor health for many years after a car crash, and a mosquito bite made worse by a shaving cut led to blood poisoning and pneumonia.
Reports at the time said Lord Carnarvon suffered from “pain as the inflammation affected the nasal passages and eyes”.
Decades later, scientists contended he had died of aspergillosis after inhaling spores of the fungus aspergillus in the tomb, which can lie dormant for months. The fact several others who entered were also found dead withiin a short time led to the myth of the curse.
How to apply for a drone permit
- Individuals must register on UAE Drone app or website using their UAE Pass
- Add all their personal details, including name, nationality, passport number, Emiratis ID, email and phone number
- Upload the training certificate from a centre accredited by the GCAA
- Submit their request
What are the regulations?
- Fly it within visual line of sight
- Never over populated areas
- Ensure maximum flying height of 400 feet (122 metres) above ground level is not crossed
- Users must avoid flying over restricted areas listed on the UAE Drone app
- Only fly the drone during the day, and never at night
- Should have a live feed of the drone flight
- Drones must weigh 5 kg or less
UAE currency: the story behind the money in your pockets
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The five pillars of Islam
Profile
Co-founders of the company: Vilhelm Hedberg and Ravi Bhusari
Launch year: In 2016 ekar launched and signed an agreement with Etihad Airways in Abu Dhabi. In January 2017 ekar launched in Dubai in a partnership with the RTA.
Number of employees: Over 50
Financing stage: Series B currently being finalised
Investors: Series A - Audacia Capital
Sector of operation: Transport
Al Jazira's foreign quartet for 2017/18
Romarinho, Brazil
Lassana Diarra, France
Sardor Rashidov, Uzbekistan
Mbark Boussoufa, Morocco
