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Category: space – Page 28

From Laws to Algorithms: Reimagining the Mathematics of Reality

The juridical metaphor in physics has ancient roots. Anaximander, in the 6th century BCE, was perhaps the first to invoke the concept of cosmic justice, speaking of natural entities paying “penalty and retribution to each other for their injustice according to the assessment of Time” (Kirk et al., 2010, p. 118). This anthropomorphizing tendency persisted through history, finding its formal expression in Newton’s Principia Mathematica, where he articulated his famous “laws” of motion. Newton, deeply influenced by his theological views, conceived of these laws as divine edicts — mathematical expressions of God’s will imposed upon a compliant universe (Cohen & Smith, 2002, p. 47).

This legal metaphor has served science admirably for centuries, providing a framework for conceptualizing the universe’s apparent obedience to mathematical principles. Yet it carries implicit assumptions worth examining. Laws suggest a lawgiver, hinting at external agency. They imply prescription rather than description — a subtle distinction with profound philosophical implications. As physicist Paul Davies (2010) observes, “The very notion of physical law is a theological one in the first place, a fact that makes many scientists squirm” (p. 74).

Enter the computational metaphor — a framework more resonant with our digital age. The universe, in this conceptualization, executes algorithms rather than obeying laws. Space, time, energy, and matter constitute the data structure upon which these algorithms operate. This shift is more than semantic; it reflects a fundamental reconceptualization of physical reality that aligns remarkably well with emerging theories in theoretical physics and information science.

Extreme ‘zombie star’ capable of ripping human atoms apart is shooting through the Milky Way — and nobody knows where it came from

Astronomers have discovered that the magnetar SGR 0501+4516 is speeding through our galaxy at more than 110,000 mph. This unusually fast speed hints that it was not born as expected, which could help explain the puzzling origin of some fast radio bursts.

Scientists recreate deep space chemistry linked to first metabolic systems on Earth

Prebiotic molecules central to life’s earliest metabolic processes—chemical reactions in cells that change food into energy—may have been born in deep space long before Earth existed, according to new research from the University of Hawaiʻi at Mānoa Department of Chemistry.

Scientists in the W. M. Keck Research Laboratory in Astrochemistry have recreated the found in dense interstellar clouds and discovered a way for the complete set of complex carboxylic acids—critical ingredients in modern metabolism—to form without life on timescales equivalent to a few million years.

The study, published in the Proceedings of the National Academy of Sciences, focused on molecules such as those in the Krebs cycle, a fundamental metabolic pathway used by nearly all living organisms. These molecules, which help break down nutrients to release energy, may have , forming in the icy, low-temperature environments of interstellar space.

Half The Universe’s Matter Was Missing. Astronomers Just Found It

A new analysis of the sky has finally confirmed where the missing half of the Universe’s visible matter has been hiding.

In the space around galaxies, it lurks as huge, invisible clouds of ionized hydrogen. Normally, this would be impossible to see – but a large international team of astronomers and astrophysicists has developed a technique that reveals its hiding places, out there in the darkness amidst the stars.

Survey programs confirm the missing half of the Universe’s material takes the form of an intergalactic mist of hydrogen expelled farther from the active cores of galaxies than anybody previously thought.

It’s about (space-)time: Scientists explore new dimension for light

By breaking a decades-old paradigm and rethinking the role that the dimension of time plays in physics, researchers from the University of Rostock and the University of Birmingham have discovered novel flashes of light that come from and go into nothingness—like magic at first glance but with deep mathematical roots that protect against all kinds of outside perturbations. Their findings have now been published in the journal Nature Photonics.

Time is the strange dimension: Unlike its spatial siblings, it is a one-way street as the clock only ever ticks forward and never backward. Scientists have long been aware of time’s quirks, with the British astrophysicist Sir Arthur Eddington musing about this “arrow of time” in his 1927 lectures. Nevertheless, whether it be because of or despite its uniqueness, time as a dimension for physics to play out in has long received far less attention than space.

Recently though, rapid progress in the research on so-called spatiotemporal crystals, objects with repeating patterns in time and space, has inspired a rethinking of the role time should play in our understanding of physics. Additionally, this has spawned the question of whether the uniqueness of time can be more than a mere quirk and instead lead to new effects ultimately useful in applications.

ELVIS Leaves Earth: 3D Holograms in Orbit Could Reveal Life on Icy Moons

A new kind of microscope called ELVIS is heading to the International Space Station to change how we study life in space. By creating stunning 3D holograms of cells, it allows scientists to observe how organisms adapt to microgravity and other extreme conditions. This could help us understand whe

Planetary alignment provides NASA rare opportunity to study Uranus

When a planet’s orbit brings it between Earth and a distant star, it’s more than just a cosmic game of hide and seek. It’s an opportunity for NASA to improve its understanding of that planet’s atmosphere and rings. Planetary scientists call it a stellar occultation and that’s exactly what happened with Uranus on April 7.

Observing the alignment allows NASA scientists to measure the temperatures and composition of Uranus’s stratosphere—the middle layer of a planet’s atmosphere—and determine how it has changed over the last 30 years since Uranus’s last significant occultation.

“Uranus passed in front of a star that is about 400 light years from Earth,” said William Saunders, planetary scientist at NASA’s Langley Research Center in Hampton, Virginia, and science principal investigator and analysis lead, for what NASA’s team calls the Uranus Stellar Occultation Campaign 2025.

Anand Prasad — Minimal Phenomenal Experience (MPE) and the Nature of Subjectivity and Time

In the context of minimal phenomenal experience (MPE), the prevailing assumption is that subjectivity is entirely absent in pure awareness. This conclusion is based on the dissolution of specific properties of subjectivity, such as the first-person perspective and self-localization in space. However, while these properties are integral to subjectivity, their absence does not negate the existence of subjectivity itself. Some individuals report experiencing a bare witness or a sense of presence that might be a default property of consciousness, with other properties(FPP) being content-induced.

Similarly, MPE is often considered timeless due to the lack of change(zero content). We propose that the very persistence of awareness—being aware of itself as the only content—could serve as a rudimentary marker for the passage of time. Imagine an opera singer holding a note: while there’s no pitch change, the experience of the sustained note creates persistence of same experience and duration. Likewise, the persistence of awareness in MPE might provide a minimal sense of time.