Neutrinos, the second most common fundamental particles in the universe, are notoriously difficult to detect. So far we’ve only been able to do so by building giant vats of water far underground with hundreds of photodetectors watching for brief flashes of light. But a new CubeSat mission hopes to change that dynamic and enable the neutrino detectors of the future a much less constrained and expensive existence - in space.
Some animals can move efficiently beneath granular surfaces. These include the sandfish (Scincus scincus), a lizard native to the Sahara. It can burrow into the sand and then literally "swim" through the desert sand to hunt or escape predators. German researchers are working on a rover wheel design that mimics that swimming motion. In testing, the wheel system outperformed regular wheels.
A new study reevaluates the Kardashev Scale using a new framework that includes the Bitcoin network as a means of measuring the trajectory of human development.
Exoplanet hunters are keen to find the next extrasolar earthlike planet, one that may harbor life as we know it. But preliminary results from a new study indicate that our galaxy may be filled with a plethora of exo-Venuses. Yet as one exoplanetary researcher notes: the template for such exo-worlds --- our own Venus --- has been ‘criminally underexplored.’
Spacecraft often use planets for gravity-assist or "slingshot" maneuvers. NASA's Psyche mission used Mars for that purpose during a May 15th flyby. The flyby accelerated the spacecraft and aimed it at its eventual destination, the asteroid 16 Psyche. The flyby was also an opportunity to take some pictures of Mars, and to test and calibrate the spacecraft's science instruments.
Here’s an entire BBC concert by Joni Mitchell, filmed in September, 1970. I’ve always thought that BBC concerts were the best, as they will always live and without accompaniment. This one is 48 minutes long, and she had long career after this with some great albums (“Blue,” “For the Roses” and “Court and Spark”).
I have nothing to add to this music save to say that I think she’s the greatest combination of singer, songwriter, and instrumentalist of our time, and like most boys my age (I was 21), I was hopelessly in love with her. James Taylor, who also had a BBC concert that same year, rivals her on the male side for the trio of talents, but Joni has the overall edge.
Oh, and some of my favorite songs here are “Chelsea Morning” (at the start), “My Old Man” (16:47), “Woodstock” (25:10), “All I Want” (31:00, on the dulcimer), “All I Want” (31:45), “California” (36:45), and of course “Both Sides Now” (44:25)
Can you imagine being in the audience and hearing these songs for the first time?
The first comment is ineffably poignant:
@chaulahopefisher4064 I am at the end of my life, 68 years old and in hospice…dying with leukemia. I remember owning my first JONI MITCHELL album with clouds and Michael from mountains, Nathan la frenier, etc…. it changed my life and initiated my music career. I have lived lifetimes since then and changed careers several times. Now, resting on my couch, I listen to this old concert and remember how I felt when I was 13 years old and just hearing these songs for the very first time. at the time she was the older wiser woman whom I wanted to emulate…. now, watching this, she is dewy youth and I the rusk, ready to blow away on the wind with a song in my heartNew Mexico State University (NMSU) astronomy graduate student Khagendra Katuwal studied 70 coronal holes on the sun to better understand the connection between solar activity and space weather. His paper was recently published in The Astrophysical Journal.
In 2014, researchers presented the discovery of water vapour plumes being emitted from Jupiter's moon Europa. This caused quite a stir; it meant that the moon's buried ocean was accessible without contending with the thick ice shell that concealed it. But new research by the same researchers questions those detections.