Search results for axial tilt

Space Exploration Apr 11, 2024

Wireless power transmission could enable exploration of the far side of the moon

How can future lunar exploration communicate from the far side of the moon despite never being inline with the Earth? This is what a recent study submitted to IEEE Transactions on Aerospace and Electronic Systems hopes to ...

Planetary Sciences Mar 20, 2024

Spring is here: NOAA satellite animation captures vernal equinox

Spring has officially arrived in the Northern Hemisphere, while the Southern Hemisphere is embracing autumn. The start of astronomical spring, known as the vernal equinox, occurred yesterday, March 19, 2024, at 11:06 p.m. ...

Astrobiology Jan 15, 2024

Water may have flowed intermittently in Martian valleys for hundreds of millions of years

Using impact craters as a dating tool, Planetary Science Institute Research Scientist Alexander Morgan has determined maximum timescales for the formation of Martian valley networks shaped by running water.

Planetary Sciences Sep 26, 2023

The darkest parts of the moon are revealed with NASA's new camera

While the surface of the moon has been mapped in incredible detail over the last several decades, one region has eluded orbital cameras due to the lack of sunlight, which are aptly called the permanently shadowed regions ...

Astronomy Sep 12, 2023

New Saturn images show a change of seasons and a last glimpse of its huge, warm polar vortex

While the UK has been experiencing warm autumnal weather, a team of planetary scientists has found that Saturn's late northern summer is experiencing a cooling trend, as huge planetary-scale flows of air have reversed direction ...

Planetary Sciences Aug 18, 2023

This sure looks like the movements of a glacier across ancient Mars

It is a scientific certainty that Mars was once a much different place, with a denser atmosphere, warmer temperatures, and where water once flowed. Evidence of this past is preserved in countless surface features, ranging ...

Optics & Photonics Jul 24, 2023

3D-printed facet-attached microlenses (FaML) could overcome photonic packaging challenges

Photonic integrated circuits (PICs) are on the verge of significant disruption through the unlocking of novel applications. This success largely relies on advanced wafer-level miniaturized photonic device fabrication, combining ...

Planetary Sciences Jun 30, 2023

NASA's HiRISE camera recently imaged a Martian dust devil. But why study them?

NASA recently used its powerful High Resolution Imaging Experiment (HiRISE) camera onboard the Mars Reconnaissance Orbiter to take a breathtaking image of a dust devil traversing Syria Planum on Mars. One unique aspect of ...

Astrobiology Jun 19, 2023

We could see the glint off giant cities on alien worlds, suggests paper

How large would an extraterrestrial city have to be for current telescopes to see it? Would it need to be a planet-sized metropolis like Star Wars' Coruscant? Or could we see an alien equivalent of Earth's own largest urban ...

Earth Sciences Nov 10, 2022

Earth-sun distance dramatically alters seasons in the equatorial Pacific in a 22,000-year cycle

Weather and climate modelers understand pretty well how seasonal winds and ocean currents affect El NiƱo patterns in the eastern equatorial Pacific Ocean, impacting weather across the United States and sometimes worldwide.

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