Now you can't hide‼️ 🛰 ⠀⠀⠀ Lasers on Earth can be used to measure the position of space debris high above, providing crucial information on how to avoid in-space collisions. Until now, this technique has suffered from a fatal flaw. ⠀⠀⠀ For some time, lasers could only be used to measure the distance to space debris during the few twilight hours in which the ‘laser ranging’ station on Earth is in darkness, but debris objects high above are still bathing in the last of the Sun’s rays. ⠀⠀⠀ In the same way that the Moon is brightest when it is glistening in sunlight while it is night on Earth, space debris is easier to spot when reflecting the Sun’s light as seen from a dark vantage point. ⠀⠀⠀ Because debris objects are so much closer to Earth, however, there is only a small window in which they are lit up but observers on Earth are not. ⠀⠀⠀ Now, a recent study has proved it is indeed possible, in full daylight, to use lasers to determine the distance to debris. This new laser ranging method will help improve orbit…

Heavens-Above provides satellite visibility predictions and a host of other astronomy related information, all customized for your location.

‎People across the world have been spotting an amazing line of bright moving lights in their night sky. These are Starlink satellites launched by SpaceX, and they look like a "train" of moving lights since 60 satellites are launched together at a time.

Find out when you can see this phenomenon at yo…