On Nov. 9, 2024, the world will mark Carl Sagan’s 90th birthday – but sadly without Sagan, who died in 1996…
Browsing: Cosmos
In recent decades, we’ve learnt huge amounts about the universe and its history. The rapidly developing technology of telescopes –…
A ghost is haunting our universe. This has been known in astronomy and cosmology for decades. Observations suggest that about 85% of all…
We breathe oxygen and nitrogen gas in our atmosphere every day, but did you know that these gases also float…
South Africa’s Karoo region is a vast semi-arid area that stretches across four of the country’s provinces. It is sparsely…
The late physicist Stephen Hawking first asked me to work with him to develop “a new quantum theory of the…
Voyager 1 is the farthest human-made object from Earth. After sweeping by Jupiter, Saturn, Uranus and Neptune, it is now…