Suppressing Starlight: How to Find Other Earths

Suppressing Starlight: How to Find Other Earths

One underappreciated aspect of the current flood of exoplanet discoveries is the technical marvels that enable it. Scientists and engineers must capture and detect minute signals from stars and planets light years away. With the technologies of even a few decades ago,...
First metal 3D printing on Space Station

First metal 3D printing on Space Station

One small s-curve deposited in liquefied stainless steel equals a giant leap forward for in-orbit manufacturing: this is the very first metal 3D printing aboard the International Space Station, which took place last Thursday, aboard ESA’s Columbus laboratory...
When to see the Full Moon and phases

When to see the Full Moon and phases

A composite image showing the Full Moons in 2020 and 2021 by month. Credit: Soumyadeep Mukherjee. The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire side of the Moon that...
A New Way to Make Precise Maps of the Lunar Surface

A New Way to Make Precise Maps of the Lunar Surface

There was a time when maps of the Moon were created from telescopic observations and drawings. Indeed Sir Patrick Moore created maps of the Moon that were used during the historic Apollo landings. Now researchers have enhanced a technique to create accurate maps from...