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The best science and technology pictures of the week

  • The bright stuff
    Lightning arcs across the sky during a storm in Guangzhou, Guangdong province in China. (Reuters)
  • Heavy metal
    A robot plays the guitar at the Robot Ball scientific exhibition in the Russian capital Moscow. (Reuters)
  • Cosmic cloud
    Infrared observations from NASA's Nasa's Spitzer Space Telescope show clumps of star-forming material in clouds of gas and dust. (Nasa/JPL-Caltech/AFP)
  • Near miss
    Two Swiss Air Force F-5E Tiger IIs perform a high-speed manoeuvre at the ILA Berlin Air Show 2014. (AP)
  • Force of nature
    A man walks past houses tilted from floodwaters in Krupanj in Serbia, after record rainfall in the Balkans caused widespread flooding and killed at least 40 people. (Reuters)
  • Bone idle
    A technician lies next to a dinosaur femur at a museum in the Argentinean city of Trelew, after a large set of fossil remains was found nearby. (Museo Egidio Feruglio/Reuters)
  • Bear grills
    A polar bear basks at Berlin Zoo, as the German capital enjoyed sunny weather. (AP)
  • Smoky streets
    Workers from Haiti's Ministry of Public Health and Population spray chemicals to kill disease-carrying mosquitoes in the capital Port-au-Prince. (AFP/Getty Images)
  • Unique find
    A comb jellyfish – publication of its genetic sequence reveals it has a nervous system like no other animal. (University of Florda/Reuters)
The most impressive pictures from the worlds of science and technology this week, from rocking robots to an impressive dinosaur bone.

More galleries

Fire bombing and huggy bears

Huggy bears

Two brown bears embrace inside an enclosure at a bear park in Zarnesti, central Romania. The bears are some of many rescued from roadside stalls or restaurants. (Reuters)

Blazing skies and moody twisters

Blazing sky

Clouds lit up by the setting sun at Mollymook Beach on the south coast of New South Wales, Australia. (Reuters)

Amazing air displays and breathtaking nature

flight

flight

Plane trails and tadpole stars

Sky lines

Contrails from jets flying overhead form a backdrop behind the National Museum of Art in Washington DC. (AP)

Volcanic plumes and home-made tanks

Tropical thunder

Ash rises into the sky from Ecuador’s Tungurahua volcano near Banos, south of the capital Quito. The volcano has been classified as active since 1999. (Reuters)

Foggy landings and robot tackles

Foggy flyer

A plane comes in to land at Heathrow Airport, west London, during heavy fog caused by pollution and dust blown up from the Sahara Desert. (PA)

Space suit test and peeking penguins

Peek-a-boo

Gentoo penguins at the start of their breeding seasons at the Sea Life London Aquarium. (PA Wire)

Ocean secrets and the dawn of the Universe

Blue diamond

Four F/A-18s of the US Navy Blue Angels display team perform a close-formation aerobatics stunt during an air show in El Centro, California. (Imperial Valley Press/AP)

Sexy robots and an eerie whale

Sex machines

Two robots perform a cheeky pole dance on the eve of the CeBIT Technology Trade Fair in Hanover, Germany. (AFP/Getty Images)

Aurora mission and frozen falls

Awesome aurora 2

A Nasa rocket is launched into an aurora over the Alaskan village of Venetie. The rocket’s mission was to investigate “curls” – patterns showing magnetic activity. (Nasa/Reuters)

Leopard escape and London time travel

Bridging two worlds

George Davison Reid’s 1930 view of Tower Bridge is merged with a modern scene as part of an exhibit at the Museum of London. (GD Reid/Museum of London)

Iced-up airliners and a violent Sun

Melting moment

An airport worker sprays de-icing liquid onto a Boeing 737m, as China shivers during snowy winter weather. (Reuters)

Dancing F-16s and a view of the Universe

Aerial dance

Two F-16s of the Singaporean Air Force display team the Black Knights, captured during a performance at the Singapore Airshow. (AP)

A rocket’s slow crawl and a spectacular volcano

Slow crawl to the stars

A Russian Soyuz-U booster carrying an unmanned cargo spacecraft Progress M-22M heads to the launchpad at Baikonur, Kazakhstan. (AFP/Getty Images)

A lion's check up and a brain sculpture

Feline canines

A Kenya Wildlife Service team take measurements of a male lion’s teeth while they prepare to fit the animal with a GPS tracking collar in Nairobi National Park. (AP)