Solar Impulse plane powered by sunlight, night test flight is successful.

As one of my post reported that plane powered by sunlight is being tested for the night time and the BBC reports says that the mission, i mean the test flight was successful and had continuously flow through out the night, continuously for 26 hrs. 

The plane landed at Payerne airport after a total flight time of 26 hours.

During the flight it reached a height of 8,700 m (28,543 ft).

Assistants rushed to stabilise the experimental aircraft as it touched down, ensuring that its huge 63m (207ft) wingspan did not scrape the ground and topple the plane.

Solar Impulse plane powered by sunlight, night test flight is successful.

Solar Impulse plane powered by sunlight, starts 24-hour test flight

A New experimental aircraft that will be powered by largest energy source SUN is on test flight for 24 Hrs.

The aim is to assess whether the plane can fly in darkness, using solar cells on its wings to generate enough power to stay in the air for 24 hours.

The HB-SIA plane, which took off from Switzerland, has the weight of a family car but the wingspan of a big airliner.

Solar Impulse plane powered by sunlight, starts 24-hour test flight

Inventor of Photosynthesis-Based Solar Cells Wins Millennium Tech Prize.

A Switzerland-based chemist who invented solar cells that mimic photosynthesis is the winner of a million-dollar technology prize announced Wednesday. Michael Gratzel invented low-cost solar cells that can be turned into electricity-generating windows, mobile solar panels and other devices.

He won the $960,000 (€800,000) Millennium Technology Prize, awarded every other year by Finland's Technology Academy.

The cells use nanocrystal films to produce power from sunlight, the BBC reports. The particles are so small that they don't scatter light, and can collect solar energy from all sides. The cells are fairly cheap to make — they use dye squeezed from berries, for instance — which the Finnish academy said could be a breakthrough for solar energy.

Inventor of Photosynthesis-Based Solar Cells Wins Millennium Tech Prize.

Low cost solar cells coming soon.

A professor who invented low-cost solar cells that may be incorporated into energy-producing windows has been awarded the Millennium Technology Prize.

Finland's Technology Academy on Wednesday awarded Swiss professor Michael Gratzel with the prize, which is said to be the biggest award in the field of technology. The award, which is given as 800,000 Euros, amounts to about $960,000.

The groups says "Gratzel cells" are significant because they are cheaper than other types of technology that seek to capture energy from the sun.

Low cost solar cells coming soon.