Astronomers have discovered a "teenage vampire" dead star in the process of devouring a companion star during a short-lived, "missing link" phase of its evolution.
As climate change accelerates and politicians continue to argue, scientists are exploring radical new ways to protect our planet. One of the most ambitious concepts under development is a Planetary Sunshade System (PSS), essentially a massive space based umbrella designed to reduce the amount of sunlight reaching Earth and help stabilise global temperatures.

