The galaxy Messier 87 (M87) is located 55 million light years away from Earth in the Virgo constellation. It is a giant galaxy with 12,000 globular clusters, making the Milky Way's 200 globular clusters appear modest in comparison. ...
Astronomy
Nov 4, 2021
1
1645
When SARS-CoV-2 infects a cell, it introduces its RNA into it and re-programs it in such a way that the cell first produces viral proteins and then whole viral particles. In the search for active substances against SARS-CoV-2, ...
Molecular & Computational biology
Jul 20, 2021
0
502
As first pointed out by the German astronomer Karl Schwarzschild, black holes bend space-time to an extreme degree due to their extraordinary concentration of mass, and heat up the matter in their vicinity so that it begins ...
Astronomy
May 20, 2021
19
1039
Honey is humankind's oldest sweetener—and for thousands of years it was also the only one. Indirect clues about the significance of bees and bee products are provided by prehistoric petroglyphs on various continents, created ...
Archaeology
Apr 15, 2021
0
5546
Many anti-cancer drugs block signals in cancer cells that help degenerated cells to multiply uncontrollably and detach from tissue. For example, blocking the signaling protein FAK, a so-called kinase, causes breast cancer ...
Biochemistry
Jan 28, 2021
0
16
Anyone entering the world of quantum physics must prepare themself for quite a few things unknown in the everyday world: Noble gases form compounds, atoms behave like particles and waves at the same time and events that in ...
General Physics
Dec 23, 2020
0
436
Biotechnologists have been attempting to reprogram natural cell organelles for other processes for some time—with mixed results, since the laboratory equipment is specialized on the function of organelles. Dr. Joanna Tripp, ...
Biotechnology
Nov 12, 2020
0
437
In 1999, the Egyptian chemist Ahmed Zewail received the Nobel Prize for measuring the speed at which molecules change their shape. He founded femtochemistry using ultrashort laser flashes: the formation and breakup of chemical ...
General Physics
Oct 16, 2020
2
2683
Corals precipitate their calcareous skeletons (calcium carbonate) from seawater. Over thousands of years, vast coral reefs form due to the deposition of this calcium carbonate. During precipitation, corals prefer carbonate ...
Earth Sciences
Aug 10, 2020
0
16
In the first billion years, there was no oxygen on Earth. Life developed in an anoxic environment. Early bacteria probably obtained their energy by breaking down various substances by means of fermentation. However, there ...
Evolution
Aug 7, 2020
0
255
