A Nasa rover on Mars was struck by charged particles from a solar storm that swept the Red Planet last month.
The cameras on the Curiosity rover, which landed there 12 years ago, recorded white streaks and specks falling “like snow” on May 20, as charged particles hit the lenses.
Nasa said that if astronauts had been standing next to the rover at the time, they would have received a radiation dose of 8,100 micrograys.
“Mars scientists have been anticipating epic solar storms since the Sun entered a period of peak activity called solar maximum earlier this year,” Nasa said on Monday.
“Over the past month, Nasa’s Mars rovers and orbiters have provided researchers with front-row seats to a series of solar flares and coronal mass ejections that have reached Mars – in some cases, even causing Martian auroras.”
The camera on the agency's Odyssey orbiter, which is used for orientation, was also inundated by energy from solar particles, putting it temporarily off line.
Mars has a very thin atmosphere that leaves it vulnerable to charged particles from the Sun.
Earth has also been struck by particles in the past few months, with the most powerful solar storm in more than two decades on May 10 that resulted in spectacular auroras from the UK to Tasmania.
"Our home planet is shielded from charged particles by a robust magnetic field, which normally limits auroras to regions near the poles," the space agency said.
"Mars lost its internally generated magnetic field in the ancient past, so there’s no protection from the barrage of energetic particles.
"When charged particles hit the Martian atmosphere, it results in auroras that engulf the entire planet."
Tom Fletcher on 'soft power'
UAE currency: the story behind the money in your pockets
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ABU DHABI ORDER OF PLAY
Starting at 10am:
Daria Kasatkina v Qiang Wang
Veronika Kudermetova v Annet Kontaveit (10)
Maria Sakkari (9) v Anastasia Potapova
Anastasia Pavlyuchenkova v Ons Jabeur (15)
Donna Vekic (16) v Bernarda Pera
Ekaterina Alexandrova v Zarina Diyas
UAE currency: the story behind the money in your pockets
Tips to stay safe during hot weather
- Stay hydrated: Drink plenty of fluids, especially water. Avoid alcohol and caffeine, which can increase dehydration.
- Seek cool environments: Use air conditioning, fans, or visit community spaces with climate control.
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- Dress appropriately: Wear lightweight, loose and light-coloured clothing to facilitate heat loss.
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Mohammed bin Zayed Majlis
Tori Amos
Native Invader
Decca
The Voice of Hind Rajab
Starring: Saja Kilani, Clara Khoury, Motaz Malhees
Director: Kaouther Ben Hania
Rating: 4/5
JAPAN SQUAD
Goalkeepers: Masaaki Higashiguchi, Shuichi Gonda, Daniel Schmidt
Defenders: Yuto Nagatomo, Tomoaki Makino, Maya Yoshida, Sho Sasaki, Hiroki Sakai, Sei Muroya, Genta Miura, Takehiro Tomiyasu
Midfielders: Toshihiro Aoyama, Genki Haraguchi, Gaku Shibasaki, Wataru Endo, Junya Ito, Shoya Nakajima, Takumi Minamino, Hidemasa Morita, Ritsu Doan
Forwards: Yuya Osako, Takuma Asano, Koya Kitagawa
The specs
Engine: 4.0-litre flat-six
Torque: 450Nm at 6,100rpm
Transmission: 7-speed PDK auto or 6-speed manual
Fuel economy, combined: 13.8L/100km
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UAE currency: the story behind the money in your pockets
Dust and sand storms compared
Sand storm
- Particle size: Larger, heavier sand grains
- Visibility: Often dramatic with thick "walls" of sand
- Duration: Short-lived, typically localised
- Travel distance: Limited
- Source: Open desert areas with strong winds
Dust storm
- Particle size: Much finer, lightweight particles
- Visibility: Hazy skies but less intense
- Duration: Can linger for days
- Travel distance: Long-range, up to thousands of kilometres
- Source: Can be carried from distant regions
T20 WORLD CUP QUALIFIER
Results
UAE beat Nigeria by five wickets
Hong Kong beat Canada by 32 runs
Friday fixtures
10am, Tolerance Oval, Abu Dhabi – Ireland v Jersey
7.30pm, Zayed Cricket Stadium, Abu Dhabi – Canada v Oman
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Company profile
Company: Verity
Date started: May 2021
Founders: Kamal Al-Samarrai, Dina Shoman and Omar Al Sharif
Based: Dubai
Sector: FinTech
Size: four team members
Stage: Intially bootstrapped but recently closed its first pre-seed round of $800,000
Investors: Wamda, VentureSouq, Beyond Capital and regional angel investors
Last-16
France 4
Griezmann (13' pen), Pavard (57'), Mbappe (64', 68')
Argentina 3
Di Maria (41'), Mercado (48'), Aguero (90 3')
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