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China launched the Wentian lab module for the space station. Photo: Fan Wei/GT Wentian lab module successfully launched. Graphics: GT After moving into the core module of China’s Tianhe space station for more than a month, the crew of three Shenzhou-14 taikonauts are now just hours away from carrying out their first major mission in orbit, accepting the arrival of the Wentian laboratory module and adding it to the China Space Station three modules. With coconut palms shaking on the coastline of the tropical island province of Hainan in South China, the giant Long March-5B Y3 heavy-lift rocket lifted off from the Wenchang Space Launch Site at 2:22 p.m., and successfully delivered Wentian – the first lab module for the station. the country’s outer space – to a predetermined orbit. After a flight of about eight minutes, the Wentian module separated from the rocket body and entered its designated orbit, marking the success of the launch mission, China’s Mann...

Image source: Getty Images Exchange-traded funds (ETFs) are growing in popularity as a method of investing in stocks and other assets on the ASX. The emergence of ETFs over the past decade or two has been a well-documented trend, including here at The Fool. But there are so many ETFs out there these days, covering just about anything anyone can think of, that it can be hard to know which ones are the best for holding money. Between index funds, commodity funds, and sector-specific ETFs, it can quickly become overwhelming to sift through the sheer number of ETFs available on the ASX. So today, let’s take a look at just five ETFs that experts say exchange-traded funds are all you need to invest successfully. Experts name just five ASX ETFs you need When it comes to ASX ETFs, one of the leading experts on the subject is Chris Brycki. Brycki is the founder and CEO of investment firm Stockspot. Stockspot builds investment portfolios for its clients using only ETFs. He recently sat ...

In space nothing can keep it clean, with the total mass of all objects in orbit said to be equivalent to about 9,900 tons. To combat this, Chinese scientists have developed large sails, which they say can be used to change the orbits of dead rockets and satellites so that they burn up in Earth’s atmosphere and don’t become space junk. The 269 sq ft (25 sq m) ‘de-orbiting sail’ works by slowly slowing its malfunctioning payload until it is moved out of orbit. The debris would then burn up in Earth’s atmosphere within a few years – a process that could take more than a hundred years. The display has been developed and successfully tested by Institute 805 of the Shanghai Academy of Spacecraft Technology (SAST) in China, according to the English-language China Global Times newspaper. The news comes after the British Government announced last month that it wanted to start tackling the millions of debris in Earth orbit. This includes organizing commercial satelli...