A space mission to intercept an Oort cloud comet — or, if we’re lucky, an interstellar object like ‘Oumuamua. … More Comet Interceptor!
Where would we be without the occasional asteroid crashing into the Earth? … More How planets die: pulverized in a deluge of asteroids and comets!
Just like people, stars age. Their planets go along for the ride and are often killed or maimed in the process…. … More How planets die: roasted, toasted and swallowed by their evolving stars!
If trees could scream, would we be so cavalier about cutting them down? We might, if they screamed all the time, for no good reason. — Deep Thoughts by Jack Handey This series is about how planets die — it is introduced here. Earth is a cosmic freaking paradise. Just look at our neighboring planets: … More How planets die: climate catastrophe!
If you ever drop your keys into a river of molten lava, just let them go because, man, they’re gone. — Deep thoughts by Jack Handey This series is about how planets die — it is introduced here. What do you think of when you hear the word tides? Ocean waves? The Moon? Maybe sitting … More How planets die: Fried by tidal volcanoes
Gas giants have murdered rocky planets (or their building blocks) around ~5 billion stars in our galaxy! (Usually by dropping them onto their Suns!). … More How planets die: When good Jupiters go bad
Just like people, planets are born and they die. We know how people die. But google “how planets die” and you’ll get the wrong answer. … More How planets die
Can moons orbit moons? wondered Juna and I.
Some planets have moons, you know, up in the sky
But none of those moons has its own moon around it.
When Juna’s son learned this he just was astounded! … More Can moons orbit moons? — the poem
Planets orbit stars. Moons orbit planets. But no moons have their own moons (let’s call them submoons). Why is that? … More Can moons have moons?
One star. Two planets share an orbit, with one following a horseshoe-shaped path around the other. Boom! … More Real-life Sci-Fi World 14: A horseshoe planetary system