This year’s Nobel Prize in Chemistry has been awarded jointly to Moungi Bawendi, Louis Brus and Alexei Ekimov “for the discovery and synthesis of quantum dots.”
Quantum dots are nanoparticles, tiny semiconductor particles, a few nanometres in size between 1.5 and...
The Nobel Prize in Physics 2023 has been awarded to Pierre Agostini, Ferenc Krausz and Anne L’Huillier "for experimental methods that generate attosecond pulses of light for the study of electron dynamics in matter”.
An attosecond is one quintillionth...
Matter is subject to gravitational attraction. Einstein’s general relativity had predicted that antimatter also should fall to Earth in the same way. However, there was no direct experimental evidence so far to show that. ALPHA experiment at CERN is...
NASA’s first asteroid sample return mission, OSIRIS-REx, launched seven years ago in 2016 to near-Earth asteroid Bennu has delivered the asteroid sample that it collected in 2020 to Earth on 24th September 2023. After releasing the asteroid sample into...
The United Kingdom and the European Commission (EC) have reached an agreement on the UK's participation in Horizon Europe (EU's research and innovation) programme and Copernicus (EU's Earth observation) programme. This is in line with the EU-UK Trade and...
Oxygen-28 (28O), the heaviest rare isotope of oxygen has been detected for the first time by Japanese researchers. Unexpectedly it was found to be short-lived and unstable despite meeting the “magic” number criteria of nuclear stability.
Oxygen has many isotopes; all...
Kākāpō parrot (also known as “owl parrot” because of its owl-like facial features) is a critically endangered parrot species native to New Zealand. It is an unusual animal for it is the longest living birds in the world (may...
Between 1958 and 1978, USA and former USSR sent 59 and 58 moon missions respectively. The lunar race between the two ceased in 1978. End of cold war and collapse of former Soviet Union and subsequent emergence of new...
India’s lunar lander Vikram (with rover Pragyan) of Chandrayaan-3 mission has safely soft landed at high latitude lunar surface on south pole along with respective payloads. This is first lunar mission to land on high latitude lunar south pole...
NASA’s mission update on 05th August 2023 said Voyager 2 communications has paused. Communications should resume once the spacecraft’s antenna is realigned with Earth in mid-October 2023.
On 4th August 2023, NASA had reestablished full communications with Voyager 2...
Parthenogenesis is asexual reproduction in which genetic contribution from male is dispensed with. Eggs develop to offspring on their own without being fertilised by a sperm. This is seen in nature in some species of plants, insects, reptiles etc....
Information about “family and kinship” systems (which is routinely studied by social anthropology and ethnography) of prehistoric societies is unavailable due to obvious reasons. Tools of ancient DNA research along with archaeological contexts have successfully reconstructed family trees (pedigrees) of...
Some organisms have ability to suspend life processes when under adverse environmental conditions. Called cryptobiosis or suspended animation, it is a survival tool. Organisms under suspended animation revive when environmental conditions become favourable. In 2018, viable nematodes from late...
Non-native English speakers face several barriers in conducting activities in science. They are at disadvantages in reading papers in English, writing and proofreading manuscripts, and preparing and making oral presentations in conferences in English. With little support available at...
During excavations in the Donau-Ries in Bavaria in Germany, archaeologists have discovered a well-preserved sword that is over 3000 years old. The weapon is so exceptionally well preserved that it almost still shines.
The bronze sword was found in...
“CRISPR-Cas systems” in bacteria and viruses identify and destroy invading viral sequences. It is bacterial and archaeal immune system for protection against viral infections. In 2012, CRISPR-Cas system was recognised as a genome editing tool. Since then, wide range of...
Chandrayaan-3 moon mission will demonstrate ''soft lunar landing'' capability of ISRO. This mission will also demonstrate lunar roving and conduct in-situ scientific experiments. The mission is a steppingstone towards ISRO’s future interplanetary missions.
India’s space agency ISRO has successfully launched...
Extinct gigantic megatooth sharks were at the top of the marine food web once. Their evolution to gigantic sizes and their extinction are not well understood. A recent study analysed isotopes from the fossil teeth and found that these...
The traditional grouping of life forms into prokaryotes and eukaryotes was revised in 1977 when rRNA sequence characterisation revealed that archaea (then called 'archaebacteria') are ‘‘as distantly related to bacteria as bacteria are to eukaryotes.‘' This necessitated grouping of living...
Unlike conventional mRNA vaccines which encodes only for the target antigens, the self-amplifying mRNAs (saRNAs) encodes for non-structural proteins and promotor as well which makes saRNAs replicons capable of transcribing in vivo in the host cells. Early results indicates that...
The scientists at Lawrence Livermore National Laboratory (LLNL) have achieved fusion ignition and energy break-even. On 5th December 2022, the research team conducted controlled fusion experiment using lasers when 192 laser beams delivered more than 2 million joules of UV...
The first detection of carbon dioxide in the atmosphere of a planet outside the solar system, the first image of an exoplanet by JWST, the first image of an exoplanet ever taken at deep infrared wavelength, the first detection of...
Scientists have replicated the natural process of mammalian embryonic development in the laboratory up to the point of development of brain and heart. Using stem cells, researchers created synthetic mouse embryos outside uterus that recapitulated natural process of development...
RNA ligases play an important role in RNA repair, thereby maintaining RNA integrity. Any malfunction in RNA repair in humans seems to be associated with diseases like neurodegeneration and cancer. Discovery of a novel human protein (C12orf29 on chromosome...
Ever changing environment leads to extinction of the animals unfit to survive in the changed environment and favours survival of the fittest which culminate in evolution of a new species. However, thylacine (commonly known as Tasmanian tiger or Tasmanian wolf),...
