Terrestrial planet
What’s the Best Mix of Oceans to Land for a Habitable Planet?
Earth is about 29% land and 71% oceans. How significant is that mix for habitability? What does it tell us…
Earth and Venus are the Same Size, so Why Doesn’t Venus Have a Magnetosphere? Maybe it Didn’t Get Smashed Hard Enough
A new study lays out why Venus doiesn't have a magnetic field like Earth's. Basically, it may come down to…
What is the Smallest Planet in the Solar System?
Of all the planets in the Solar System. Mercury is now the regarded as the smallest, with a mean radius…
Is This The Exoplanet Where Life Will First Be Found?
An international team of scientists has found another rocky planet (LHS 1140b) orbiting a nearby red dwarf star. And it…
Huge News, Seven Earth-Sized Worlds Orbiting a Red Dwarf, Three in the Habitable Zone
In what is the biggest announcement in exoplanet-hunting history, NASA has announced the discovery of seven rocky exoplanets around a…
The Orbit of Venus. How Long is a Year on Venus?
As the second closest planet to our Sun, Venus takes 224.65 days to complete a single orbit around our Sun,…
Could Garnet Planets be Habitable?
A study presented at the 229th Meeting of the AAS examines how the composition of stars can produce very different…
Is Proxima Centauri b Basically Kevin Costner’s Waterworld?
New research suggests that Proxima b could be a lot more watery than we suspect, with roughly half the planet's…
What Does “Earthlike” Even Mean & Should It Apply To Proxima Centauri b?
With so many exoplanet discoveries around distant (and neighboring) stars, it might be time to assess what terms like "Earth-like"…
Focusing On ‘Second-Earth’ Candidates In The Kepler Catalog
An international team of scientists recently released a study that shows which of the Kepler exoplanets candidates are most like…