Results 31 to 40 of about 951 (137)
Archives of impact: The politics of craters on Earth
Geographical Research, Volume 64, Issue 2, May 2026.This paper examines Earth’s 195 confirmed impact craters as archives, exploring their cataloguing and presentation as heritage sites. It argues Western scientific framings using military language and emphasising catastrophe overlook settler colonialism’s violent histories and marginalise indigenous earth‐sky cosmologies.
Gareth Hoskins
wiley +1 more source
Prebiotic Organic Chemistry of Diketopiperazines
Asian Journal of Organic Chemistry, Volume 15, Issue 4, April 2026.Diketopiperazines (DKPs) are considered essential in many life forms, but their prebiotic importance has not been fully understood. This review aims to discuss prebiotic organic chemistry for experimentally and computationally simulated reactions involving DKPs. ABSTRACT Even though the significance of amino acids and polypeptides is well recognized in
Jun Ohata
wiley +1 more source
Tongue Sarcoidosis: A Rare Case Report and Review of the Literature
Clinical Case Reports, Volume 14, Issue 4, April 2026.ABSTRACT This study presents a case report with a literature review describing a rare manifestation of oral sarcoidosis involving the tongue in a 57‐year‐old woman with a prior diagnosis of cutaneous sarcoidosis. The lesion appeared as painless grayish‐white papules on the tip and dorsal surface of the tongue.
Saede Atarbashi‐Moghadam +4 more
wiley +1 more source
The search for primordial quark nuggets among near Earth asteroids [PDF]
Astrophysics and Space Science, 2008 Primordial Quark Nuggets,remnants of the quark-hadron phase transition, may be hiding most of the baryon number in superdense chunks have been discussed for years always from the theoretical point of view. While they seemed originally fragile at intermediate cosmological temperatures, it became increasingly clear that they may survive due to a variety ...
openaire +2 more sources
The case for a deep search for Earth’s Trojan asteroids [PDF]
Nature Astronomy, 2019 The existence of Earth's Trojan asteroids is not well constrained and represents a major gap in our inventory of small bodies in near-Earth space. Their discovery would be of high scientific and human interest.
openaire +2 more sources
Life on Mars? The physiological perspective
Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
wiley +1 more source
A Deep Search for Venus Co-orbital Asteroids
, 2021 Venus has recently been discovered to share its orbit with a ring of dust. This circumsolar ring of dust was imaged independently by two spacecraft: HELIOS A/B [1] and STEREO A/B [2]. HELIOS was able to estimate the radial and latitudinal extent of the ring by flying through it, while STEREO imaged its structure from 1 AU. Earlier work by Pokorný &
openaire +1 more source
Earth Trojan Asteroids: A Study in Support of Observational Searches
Icarus, 2000 Observational searches for asteroids orbiting near Earth's triangular Lagrange points face unique obstacles. A population of such asteroids would occupy a large projected area on the sky (possibly hundreds of square degrees) and is not favorably placed with respect to the Sun. Here we examine the properties of synthetic populations of Earth ``Trojans''
Wiegert, Paul +2 more
openaire +2 more sources
Machine learning techniques for classifying dangerous asteroids. [PDF]
MethodsX, 2023 Malakouti SM, Menhaj MB, Suratgar AA.
europepmc +1 more source
An International Asteroid Search Campaign
Astronomy Education Review, 2008 J. Patrick Miller +7 more
openaire +1 more source