Looking into our past

MEXICO CITY: Scientists turned on a massive telescope built on one of Mexico’s tallest mountains on November , hoping to get a glimpse of the beginning of the universe. With a base like a launching pad and an antenna the size of a big Ferris wheel, the Large Millimeter Telescope or LMT, will be used to pick up electromagnetic radiation known as millimeter waves emitted 13 billion years ago, when the first stars burst into existence, astrophysicists say. The $128 million telescope is a US-Mexican project built on the 4,580-metre summit of Sierra Negra, Mexico’s fifth-highest peak. With an antenna diameter of 164 feet, the LMT dwarfs existing millimeter-wave telescopes and should be able to pick up signals from the faintest objects in outer space.