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NASA’s James Webb space telescope is almost ready to get to work. The telescope’s mirrors are perfectly aligned. The team is currently finishing up the final calibrations of the spacecraft’s various instruments. Once that is done, Webb will be ready to get to work. One of the first things NASA plans to do with it is study two “super-Earth” planets known as 55 Cancri e and LHS 384 b.
Of note, both planets are located in our own Milky Way galaxy.
The Tau Herculids meteor shower may light up the skies over North America on May 30 and 31. Or it may not. There’s a chance we might pass through the thickest part of the comet fragment that is creating the debris, in which case the night skies will be filled with shooting stars.
The Baby Steps Before that “One Small Step for Man…”
As if that one particular superlative weren’t impressive enough, the X-15 helped make history in other ways: before Neil Armstrong became the first man to walk on the Moon, he was taught to fly the X-15 to the edge of space by then-Colonel Chuck Yeager, who, of course, made history in his own right as the first man to break the sound barrier whilst flying the first of the “X” planes, t he Bell X-1.
Stuart Firestein Science is a fundamentally optimistic enterprise. More than a cheery disposition, it is the source of a philosophical outlook that we might call ‘optimistical’. It reliably produces fundamental and actionable knowledge about the world. We are able to take for granted, in a way even our recent ancestors never imagined, the idea of progress. The engines behind science, surprisingly, are ignorance, the unknown, failure, and, perhaps most vexingly, uncertainty. In recent decades, science has undergone a change in perspective and practice — from viewing the universe like a clockwork regimented by laws and formulas to recognizing it as irreducibly complex and uncertain. Perhaps counter intuitively this has freed science to exploit previously unimaginable possibilities and opportunities. It has led to a deeper understanding of the nature of things and to the production of technologies such as lasers, microchips, the internet, genetics, and many more. And yet socially and societally we remain mired in a 19th century view of deterministic science. We might instead learn to revel in the adventure of navigable uncertainty and take advantage of the creative opportunities of a world where we can confidently say ‘it could be otherwise’. Possibility of this sort is the rarest and purest form of optimism. Stuart Firestein is a neuroscientist and the former Chair of Columbia University’s Department of Biological Sciences, where he researches the vertebrate olfactory system. He is also a member of SFI’s Fractal Faculty.
NASA’s next-generation space observatory successfully watched a moving asteroid as the telescope inches towards the end of its six-month commissioning period.
The successful tracking of a nearby object shows that the James Webb Space Telescope can keep a watch on solar system objects as well as the distant galaxies, stars and other faraway objects it is expected to observe in its perhaps 20-year lifespan.
NASA’s Kepler Space Telescope discovered an Earth-like planet circling a nearby star within the Goldilocks zone of our galaxy. Kepler-186f is around 500 light-years from Earth.
H in the Cygnus constellation. The habitable zone, also identified as the Goldilocks zone, is the area around a star within which planetary-mass objects with enough atmospheric pressure can sustain liquid water at their surfaces.