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Tuesday 15 April 2014

More veggies in space

Astronauts will now turn into cosmic gardeners and grow lettuce in space as United States space agency National Aeronautics and Space Administration (NASA) is all set to send the largest ever plant growth chamber to the International Space Station (ISS).

It will launch the Vegetable Production System aboard SpaceX’s Dragon capsule on Monday.

The plant growth chamber will grow lettuce inside prototype flight pillows that will help the plants withstand zero gravity, The Verge reported. Red, blue, and green light emitting diodes (LEDs) will help sustain the vegetables, and the plant chamber itself can grow to 11.5 inches wide and 14.5 inches deep, NASA said.

This will be “the largest plant growth chamber for space to date,” according to NASA payload scientist Gioia Massa.

The project was originally slated to launch late last year, but faced delays meant to ensure all safety precautions were taken, the report said.

It is now hoped that the chamber will eventually be used to grow a wider variety of vegetables, and even be used for recreational gardening, the report said.

The chamber may even be used for more ambitious projects, like providing food for the average person back on Earth. After extensive testing on weightless horticulture, NASA is confident the lack of gravity will not impede growth.

However, space-borne microbes that may develop during growth are a cause of concern. Therefore, the lettuce will undergo extensive testing before astronauts chow down.

Twitter users can now tag friends in photos

Twitter users can now tag their friends in pictures.

Long available in other social networks, the new service is part of an update of the Twitter app for iOS and Android that is now available.

Users can tag up to 10 friends in a picture and still have 140 characters to write a tweet, says the company.

Anyone who doesn’t want to be tagged can remove the label later or even block tags entirely. The update also allows users to include up to four pictures with a tweet. Previously, the limit had been one photo.