Research published in BMC Medical Education reveals a high prevalence of depression among medical students, particularly females, with symptoms including somatic and affective clusters. The study suggests that this period is crucial for professors and educators to monitor suicidal thoughts and risk in their students.
Researchers have captured a rare binary star explosion inside a planetary nebula, offering new insights into stellar evolution. The study predicts that the combined mass of the two stars could lead to a larger supernova explosion.
The new solar system orbits a dusty young star named HR8799, with three planets roughly 10 times the mass of Jupiter. The discovery allows scientists to study planets as individuals, providing insights into their atmospheres and composition.
Gemini Observatory's groundbreaking discovery reveals two planets orbiting a young, massive star called HR 8799. The system consists of three planets, including the 'first family' member, which are still glowing from heat released as they contracted, and are about seven and ten times the mass of Jupiter.
NASA's Hubble Space Telescope has directly observed a planet circling another star, Fomalhaut b. The exoplanet orbits Fomalhaut at a distance of 10.7 billion miles, 10 times that of Saturn from the sun.
A team of astrophysicists from the University of Montreal has discovered and measured the most massive star ever found, a binary system with a total mass of over 100 solar masses. The star, located in the NGC 3603 cluster, has a rotation period of 3.77 days and emits X-rays at unprecedented levels.
Researchers propose that Eta Carinae's historic 1843 outburst was a fast blast wave similar to a supernova, but less energetic. This discovery challenges current theories and may indicate supermassive stars undergo periodic explosions before their final supernova.
The Hubble Space Telescope has resolved individual threads of gas in the filaments of galaxy NGC 1275, revealing a magnetic structure that sustains them for over 100 million years. The discovery provides crucial clues about how giant black holes affect their surroundings.
A recent INFORMS study suggests that hiring top talent from competitors may not lead to improved performance. Instead, the performance of stars depends on firm-specific human capital and colleague relationships. The study's findings warn managers against expecting significant gains from hiring stars.
A Virginia Tech research group has isolated proteins responsible for iron-sulfur cluster assembly and witnessed their interactions within a cell. This breakthrough provides insight into the sequential steps of the process, helping to explain how molecules are synthesized and distributed in cells.
A team of European astronomers has discovered a triple system of super-Earths around the star HD 40307 using the HARPS instrument. The planets have masses between 4.2 and 9.4 times that of Earth, and orbit the star with periods ranging from 4.3 to 20.4 days.
A team of astronomers led by David Bennett discovered a planet with a mass about three times that of Earth, orbiting a star with a mass 6% of the sun's, potentially hosting conditions suitable for life. The discovery was made using the gravitational microlensing method and confirms predictions made in 1996.
Astronomers have detected a giant ring around a rare and exotic star known as a magnetar, which was likely produced by a massive flare. The discovery provides valuable insights into the phenomenon associated with magnetars, a type of neutron star with incredibly strong magnetic fields.
Astronomers have caught a supernova explosion in the act, providing valuable insights into the process. The observation, made possible by NASA's Swift satellite, has helped scientists form a detailed picture of star explosions and shed light on long-standing puzzles.
A small red dwarf star called EV Lacertae unleashed an unprecedented stellar flare, detected by NASA's Swift satellite. The star's fast rotation and magnetic fields generated the powerful flare, releasing energy across the electromagnetic spectrum.
A rare and intense stellar flare was detected by NASA's Swift satellite from the normally quiet red dwarf star EV Lacertae. The flare, which lasted for 8 hours, would have sterilized life-bearing planets' surfaces if they were nearby.
Scientists have discovered a timing mechanism in neutron stars that allows them to predict when incredibly powerful X-ray bursts will occur, releasing energy equivalent to 100 hydrogen bombs exploding simultaneously.
A team of astronomers from Queen's University Belfast have discovered the nature of five supernova precursor stars using Hubble images. The study reveals that stars with masses as low as seven times the mass of the Sun can explode as supernovae, challenging current understanding of massive star collapse.
Researchers found two star systems with yellow supergiant eclipsing binary characteristics, which may be the progenitors of rare supernovae. The discovery was made using the Large Binocular Telescope and suggests that these systems could explain the unusual nature of certain supernovae.
Researchers have identified a plant gene cluster that produces a triterpene compound, previously unknown in plants. The study reveals how plants can assemble beneficial gene clusters to produce valuable natural products.
Astronomers have found a clue to the evolutionary relationship between pulsars and magnetars by examining archival RXTE data of a young neutron star. The study reveals that a regular pulsar can produce powerful bursts similar to those from magnetars, challenging current understanding of their life cycles.
Astronomers have discovered a solar system nearly 5,000 light years away with scaled-down versions of Jupiter and Saturn. The planets are similar in size to our own, suggesting that planetary systems like ours may be more common than previously thought.
A new system of planets has been discovered with striking similarities to our Solar System, revealing giant planets that favour family groups over lone objects. The discovery uses a world-wide net of telescopes and challenges the single-life theory of gas-giant planets.
Researchers have discovered a multi-planet system with two large planets similar to Jupiter and Saturn, suggesting that planetary systems like our own may be common in the Milky Way galaxy. This is the first discovery of its kind, using a new gravitational microlensing technique.
Researchers using Chandra X-ray Observatory data have reported a possible detection of a binary star system that was later destroyed in a supernova explosion. The new method provides great promise for finding the detailed origin of these cosmic events.
Astronomers have determined that a hyperfast star, HE 0437-5439, originated from the Large Magellanic Cloud, contradicting its initial assumption of coming from the Milky Way. The star's elemental composition and velocity indicate it was ejected from the LMC by a massive black hole.
Astronomers have discovered a rare type of star system containing a black hole that suddenly began glowing brightly with X-rays. The system, dubbed CXOU J132518.2-430304, is thought to be a binary star system where one star collapsed to form a black hole.
A team of astronomers, led by Dr. Edo Berger, have observed a surprisingly active magnetic field on the ultracool low-mass star TVLM513-46546, challenging the theory that cooler stars are simple and quiet. The star's complex magnetic field environment may indicate unusual activity beneath its surface or possibly even an unseen companion.
A team of researchers proposes a new mechanism to explain the brightest ever recorded supernova, SN 2006gy. The model suggests that an extremely massive star undergoes repeated explosions, resulting in a display up to 100 times more luminous than usual.
Astronomers have discovered a massive black hole with a mass 24 to 33 times that of our Sun, exceeding expectations. The discovery was made using two NASA satellites and suggests that stellar-mass black holes can be much larger than previously thought.
Researchers at University of Bonn use computer simulations to understand how star clusters are formed from interstellar gas clouds and evolve over time. The study finds that small clusters are easily destroyed by radiation from stars, while heavy clusters survive longer.
A study in Ecological Applications finds that cluster development reduces habitat loss, but the placement of housing developments around sensitive areas like lakeshores can exacerbate environmental effects. The researchers suggest that clusters must be located away from these areas to reduce impacts.
Astronomers have found an exceptionally massive black hole in orbit around a huge companion star in the nearby galaxy M33, with a mass of 15.7 times that of the Sun. The discovery raises questions about how such a big black hole could have formed.
Scientists have found a third type of substorm onset using data from ESA's Cluster satellites and CNSA's Double Star mission. This discovery challenges existing theories about magnetic substorms and their effects on the aurora and GPS signals.
A new nasal spray treatment has been shown to be safe and effective in rapidly treating cluster headaches, considered the most painful type of headache. The study involved 52 people with cluster headaches who used zolmitriptan nasal spray or placebo to treat 151 separate attacks.
A study found that 21% of patients taking verapamil for cluster headaches experienced irregular heartbeats, while 37% had slower than normal heart rates. Close monitoring with electrocardiograms is recommended to mitigate potential heart problems.
The discovery of a planet orbiting a giant red star provides insight into the potential fate of our solar system as it evolves into a red-giant star. The planet, located 300 light years from Earth, circles its star every 360 days and offers astronomers a unique opportunity to study the effects of red-giant stars on planetary systems.
The discovery reveals how efficient neutron stars can be as cosmic power factories and shows they rival black holes in generating powerful jets. The X-ray jet is found to be almost as efficient as one from a black hole, with a surprising high percentage of energy converted into powering the jet.
Astronomers have discovered a young star with an elliptical ring that is likely caused by the presence of an undiscovered Neptune-sized planet. The ring is offset by 1.4 billion miles, more than 15 times the distance from Earth to the Sun.
Astronomers have witnessed the death of a very massive star by observing two celestial explosions at exactly the same position in the sky. The most likely explanation for the 2004 explosion was a giant outburst of the star, which was later confirmed by the final death of the same star.
Astronomers have discovered a massive transiting planet, TrES-3, with a 31-hour year, orbiting its parent star about 1,500 light-years away. The planet is twice the mass of Jupiter and one of the planets with the shortest known periods.
Astronomers discover a bright arc of extremely hot gas in a massive galaxy cluster, suggesting an exceptionally dramatic event, such as a collision between two clusters. The temperature and mass of the cluster make it a giant among giants, with a quadrillion suns' worth of mass bound by its hot gas.
Astronomers used Spitzer to study the Coma cluster, finding almost 30,000 objects, including 1,200 previously unknown dwarf galaxies. The discovery implies a total population of at least 4,000 dwarf galaxies in the cluster.
Scientists observed large fluctuations in magnetic and electric field readings around each spacecraft, revealing variations in solar wind protons reflected by the shock. This discovery provides valuable insights into bow shocks around distant celestial objects, which can accelerate particles to extreme energies.
Astronomers have measured the age of a star in our Galaxy using ESO's VLT, finding it to be 13.2 billion years old, nearly as old as the Universe itself. This discovery was made possible by a new technique that combines radioactive elements thorium and uranium to accurately determine a star's age.
Researchers found evidence of three distinct star populations born within 200 million years in the massive globular cluster NGC 2808. This discovery challenges the long-held assumption that all stars originated at the same time and place, shedding new light on stellar formation in distant galaxies.
New observations by the Hubble Space Telescope reveal that a massive globular cluster can go through several periods of intense stellar formation, contradicting the previous accepted single burst theory. The analysis shows three distinct populations of stars, each with a slightly different mix of chemical elements.
Researchers have built a new model that suggests neutron star surfaces run hotter than previously thought, releasing 10 times more heat. This helps explain the observed frequency of superbursts on such stars' surfaces, but scientists still don't know why they occur annually.
Astronomers observed a massive star suffering a double whammy, with the star surviving one outburst before exploding as Supernova 2006jc. The study found that the supernova's blast wave interacted with material ejected by the star two years earlier, indicating a unique stellar evolution process.
A team of German astronomers has identified a new globular cluster in the Milky Way, comprising approximately 100,000 stars. The discovery is significant as it provides unique laboratory conditions to investigate various aspects of astrophysics and sheds light on the formation and evolution of galaxies.
Astronomers have discovered a sun-like star in the earliest stage of development, dubbed E42, which is believed to be a virtual twin of Earth's sun. The object has a mass similar to the sun and appears in a violent environment similar to that believed to have produced our own star.
Researchers used Hubble Space Telescope to reveal a large elliptical galaxy with hundreds of globular clusters at an unprecedented 1 billion light-year distance. The discovery provides insights into the age, origin, and evolution of these clusters.
A team of astronomers has solved the long-standing mystery of Kepler's supernova remnant using Chandra's latest image, revealing it as a Type Ia supernova. The discovery sheds light on how stars can end catastrophically and expands our understanding of the universe.
Researchers found that gas giants either form within the first 10 million years of a sun-like star's life or not at all. The study suggests that gas giant planets must form early in a star's history, offering insights into planet formation.
Astronomers have discovered a population of small newborn stars in N90, a fascinating star-forming region located in the Small Magellanic Cloud. The high-energy radiation from these young stars is eroding the surrounding nebula, revealing the early stages of star formation processes.
Researchers found that under certain conditions, the surface of a strange star could fragment into blobs of quark material called strangelets, forming a rigid halo. This contradicts traditional models and raises questions about the nature of collapsed stars' nuclear leftovers.
Researchers have directly imaged a faint brown dwarf companion to the star HD 3651, which hosts a planet. The discovery provides valuable information on planetary formation and offers a unique insight into the co-formation of planets and brown dwarfs around the same star.
The HealthGrades 2007 hospital-quality study found a significant gap in patient outcomes between top-rated and poorly performing hospitals. The study analyzed 40.6 million Medicare records and revealed that mortality rates declined by nearly 8% across the nation, while the quality chasm between best and worst-performing hospitals grew ...
Scientists have detected loops and rings of hot gas surrounding the supermassive black hole, indicating periodic eruptions that generate pressure waves and sound. The sound waves are found to be more discordant and complex than previously detected, with a range of frequencies below middle C.
Astronomers discover sun was born in a massive star cluster, challenging current theories on planetary formation. The researchers used radioactive isotopes from meteorites to calculate the distance and time of a nearby supernova, suggesting that hundreds or thousands of solar siblings may exist.