With Tianwen-2, China Enters the Asteroid Race

I missed some interesting news a couple months ago, and I'm guessing you did, too. The launch of China's Tianwen-2 on May 28 took place without much fanfare. Just one space probe among many. Except, it isn't—China is flexing its muscles with an ambitious two-in-one mission, which will not only expand the nation's scientific knowledge... Continue Reading →

Book Review – Extraterrestrial (Avi Loeb)

Avi Loeb believes aliens are real, and they've visited our Solar System. But this man is no fringe conspiracy theorist, dressed in ratty flannels and a tinfoil hat, broadcasting rants from a pirate radio station in the wilderness—he's a Harvard University professor, who has done world-renowned research on cosmology and astrophysics. This is a serious... Continue Reading →

The Moons, Ranked

Back in February I handed down the definitive ranking of all the planets in our Solar System. Today, I'm going to finish the job with a corresponding ranking of the Solar System's moons—rich and varied worlds in their own right, some larger than the smallest planets. This will not be an exhaustive list. Jupiter alone... Continue Reading →

The Planets, Ranked

Not all the worlds in our solar system are created equal. Some are enormous, some are vanishingly small; some are scorching hot, others freezing cold; some (one) are clement to human life, while some (all the rest) are inhospitable deathtraps. And if I may be frank---some are just better than others. For today's post, we... Continue Reading →

Russia’s Troubled Decade in Space

The 1990s were not a good time in the former Soviet Union. When the central government fell, it wasn't just a political collapse, but a collapse of just about everything---the military, the economy, society itself. Ethnic tensions erupted into raging civil wars; rushed free-market reforms threw countless millions into poverty; amid political turmoil, President Boris... Continue Reading →

Explorations in Old Space Books

Very early on, my family instilled in me a love of coffee table books: hefty, hardcover volumes, large enough to double as paperweights or even footstools1, bedecked with photographs and artwork from front to back. Instead of reading straight through, you could open one to whatever page you fancied. They covered all sorts of topics,... Continue Reading →

Luna 3: First to the Far Side

It was on October 7, 1959, that the dark side of the Moon finally came into the light. Mind you, it was never "dark" in a literal sense; all parts of the Moon undergo a complete day/night cycle, with the far or "dark" side being lit when the near one is in shadow, and vice... Continue Reading →

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