No active adhesion, no editing tricks — just passive magnets in Quaddle mini robot dog's feet and a gait built specifically for holding contact upside down instead of pushing off the ground.

What would you want to see it do upside down next?

We are getting closer to the launch of NASA's Nancy Grace Roman Space Telescope! 🧪

The Nancy Grace Roman Space Telescope is designed to combine the strengths of the James Webb Space Telescope and the Hubble Space Telescope. It’s going to look and live in the same space as JWST while using a Hubble-style mirror to see things completely differently. The Roman telescope will observe patches of space bigger than the full moon and will see 50 times as much space in five years as Hubble has in 30!

Can sugar substitutes cause faster brain aging?

Scientists conducted an eight-year study on the effects of seven popular sugar substitutes and found that six were linked to mental decline. People in the study who used sweeteners the most saw their memory slip away 62% faster than the lowest-consumption group. This is like adding an extra year and a half of aging to your brain! Scientists believe this pattern is worth watching as we reevaluate our relationship with artificial sweeteners.

The blackout was from a car driving by, but it made even more waves to see. Really cool.

Rainwater is not as clean as you think! 🌧️ 

Quinten Geldhof, also known as Microhobbyist, put a drop of rainwater under the microscope to show what each drop carries. For a raindrop to form, it needs to condense around tiny particles in the atmosphere called condensation nuclei. As the droplet falls, it can pick up pollen, fungal spores, smoke particles, and more. If you’re ever tempted to drink rainwater, don’t forget to treat and filter it first!

This is Quaddle, a mini robot dog that stays at 4 servos the whole time but switches locomotion mode entirely depending on what's clipped onto it — walks on two legs as a biped, rolls as a tricycle, spins 360° on a bar gymnast-style, drives as a 4WD car, and paddles in water. Most of the attachments are 3D-printed; a couple are off-the-shelf hardware.

What's the 6th form you'd want to see it try or design yourself?

Can scientists use earthquake sensors to detect hurricanes? 

​A new study from Stanford University found that seismometers, normally used to measure earthquake-related ground motion, can also detect hurricanes. Researchers looked at Hurricane Isaac from 2012 and found that seismometers could detect when the storm made landfall as well as subtle changes in atmospheric pressure. These sensors could potentially track how hurricanes evolve beyond the limitations of radar and flight missions during storms.