Never miss a story

Get subscribed to our newsletter

A meteor streaks across the sky in the early morning as people watching during the Perseid meteor shower in Ramon Carter near the town of Mitzpe Ramon, southern Israel, August 13, 2015. The Perseid meteor shower is sparked every August when the Earth passes through a stream of space debris left by comet Swift-Tuttle. VOA
  • Australian scientists are developing new kinds of lasers
  • These lasers will be used to destroy space junk
  • There is an estimated 7500 tons of junk in space

Australian scientists say a powerful ground-based laser targeting space junk will be ready for use next year. They say there are hundreds of thousands of pieces of debris circling the Earth that have the potential to damage or destroy satellites.

Reducing the amount of space junk in orbit has been the focus of a meeting of scientists this week in Canberra organized by Australia’s Space Environment Research Center.

There is 7500 tons of junk in space. Wikimedia Commons

The meeting has heard that a laser using energy from light radiation to move discarded objects in space could be ready for use within a year. Researchers in Australia believe the technology would be able to change the path of orbital junk to prevent collisions with satellites. The aim is to eventually build more powerful laser beams that could push debris into the Earth’s atmosphere, where it would burn up. Professor Craig Smith, head of EOS Space Systems, the Australian company that is developing the junk-busting devices, explained how it would work.

Also Read: NASA’s Juno spacecraft detects “Monster” Cyclones on Jupiter’s Surface

“We track objects and predict collisions to high accuracy and if we think a space debris object is going to have a collision with another space debris object then we can use our laser to change its orbits rather than crashing into a satellite or another space debris object causing more space debris. Again as we ramp up the power to bigger and bigger lasers then, yes, you can actually start moving it enough to what we call de-orbit the satellite by reducing its velocity enough that it starts to change orbit height and eventually hits the atmosphere and the atmosphere takes over and drags it,” Smith said.

The system, which would operate through a telescope near the Australian capital, Canberra, is expected to be finished early next year. It is estimated there are 7,500 tons of trash in space. This includes an estimated half-a-million marble-sized pieces of junk, while other items, such as discarded rockets and disused parts of space crafts, are much larger.

The lasers will be used to destroy space junk. Pixabay

In 2012, the eight-ton Envisat Earth Observation satellite unexpectedly shut-down in orbit, where it remains. The size of a school bus, the satellite is one of the largest pieces of ‘junk’ in orbit and could become a catastrophic hazard if struck by other space debris and broken into fragments.

But space debris does not have to be big to cause damage. A floating fleck of paint is thought to have cracked a window on the International Space Station. In Europe, large nets and harpoons are being developed to catch debris encircling our planet. VOA



Afghans were by far the largest group of applicants in the EU in September.

Afghans lodged more than 17,000 asylum applications in the EU in September, up from 10,000 in August and nearly twice as many as Syrians. This made Afghanistan by far the main country of origin, which Syria had been for seven years until July, the European Asylum Support Office (EASO) said.

Total applications in the EU exceeded pre-pandemic levels for the first time since the outbreak of Covid-19.

Keep Reading Show less
Photo by @shawnanggg on Unsplash

Aviation has revolutionised tourism and business forever, not to mention the cultural linkages that have been made possible.

“When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return.” – Leonardo DaVinci

International Civil Aviation Day is observed on December 7th to recognize the flying industry’s impact on modern society. In 1994, as part of ICAO’s (International Civil Aviation Organization) 50th-anniversary celebrations, the first International Civil Aviation Day was observed, and in 1996, the United Nations General Assembly declared December 7th as International Civil Aviation Day.

Keep Reading Show less

Incomplete data entries and loopholes in the ledger are significant factors in slowing down the accounting process.

By- Harris Scott

Business owners hardly have time to look into all aspects of a business operation, and accounting is one aspect. While small business owners might invest some time handling accounting services, it is indeed a big waste for owners of major enterprises. Regardless of the size of the business, your organization needs someone to look after the ledger.

Keep reading... Show less