Ceres; promoted to dwarf planet
Asteroid Ceres has been promoted to dwarf planet There is a disturbance in the symmetry of the solar system. Between […]
Planetary geology
Witness to an impact
The dinosaurs were snuffed out in a geological instant (well not exactly, but that is a popular image). The Chicxulub
“There are more Exoplanets than stars in our galaxy”
How many stars are there in our own galaxy, the Milky Way? A number frequently bandied about is 100 billion.
Tidal waves; prisoners of celestial forces
We are told that a tide waits for no one, the impatient cousin of time. In its early 13th century idiom
Martian organics; one more step in the right direction
Organic compounds (i.e. molecules that contain carbon bonded to hydrogen) are not the prerogative of earth. They have been identified
Archeomagnetic Jerks; our decaying magnetic field
“Archeomagnetic Jerks”. This interesting phrase refers, not to people, but to our global magnetic field; the one that protects us
Jet Streams
The Polar Vortex. Sounds like scenes from the apocalyptic movie The Day After Tomorrow; a bit of a down-draft and
It looks like sea level rise is accelerating; the era of satellite altimetry
Sea level. It’s the most common starting point for any kind of elevation measurement, a datum, that for centuries was
Visualizing Mars landscapes in 3 dimensions; stunning images from HiRISE
For my 10th birthday my grandparents gave me a massive Collins encyclopedia – a 1960 update of the known universe.
Subcutaneous oceans on distant moons; Enceladus and Europa
Our blue Earth, rising above the lunar horizon, is an abiding image of our watery state that must evoke an