Premier League clubs are fearful that a significant number of first-team stars may refuse to return to action if the league's Project Restart plan gets the green light.

The summer transfer window is nearly upon us as Manchester United, Chelsea, Liverpool, Arsenal and the rest of the Premier League look to strengthen for whenever the new season starts. Express Sport brings you the latest updates throughout the day.

Whether it was driverless cars, lab-grown meat or faster-than-light neutrinos, some things just didn't live up to the hype in the 2010s

NASA’s Mars 2020 rover will search for signs of life on Mars, and New Scientist’s Leah Crane visited it in the clean room where it is being assembled

A neutron star has produced gravitational waves after colliding with an unknown object – it could be the smallest black hole or biggest neutron star ever found

Mercury is mostly iron, which may be because a series of close encounters with a young Venus billions of years ago stripped away its rocky outer layers

Strange blasts from space called fast radio bursts continue to puzzle astronomers with their odd behaviour, as they seem to come from a variety of galaxies

China has connected the world’s first portable ground station for quantum communication to the Mozi satellite, and has plans to launch another quantum satellite soon

Astrology is bunk, but a new book exploring its ancient history argues that it has crucial lessons for today's data science with its seemingly opaque algorithms

The first US woman to spacewalk flew on three shuttle missions and says nothing beats space flight – but her proudest achievement is helping to repair the Hubble Space Telescope

A strange supernova that’s 100 times brighter than it should be has long been a mystery, but it may be explained by the explosion slamming into a cloud of gas

The Solar Orbiter spacecraft, set to launch on 7 February, will give us our first clear views of the sun’s poles and help unravel the mystery of the solar wind

The best picture of the sun is more than five times more detailed than the previous highest-resolution images, revealing weird structures on our star’s surface

Astronomers have spotted a star that is exploding with a brightness 100 times less than expected – and it’s a mystery exactly why the explosion is so dim

Strange, powerful blasts of radio waves from space called fast radio bursts sometimes flash repeatedly, but never with any discernible pattern – until now

Young Mars may have endured a series of huge collisions that smashed its mantle, throwing off our measurements of when it formed by up to 15 million years

NASA has selected four potential future missions – to Jupiter’s fiery moon Io, Neptune’s icy moon Triton, and two that would explore the atmosphere and map the surface of Venus

The International Astronomical Union has concluded a review of satellite mega constellations such as SpaceX's Starlink satellites and found they will have a major impact on large telescopes, but not naked eye astronomy

For the first time, astronomers have spotted an exoplanet by detecting radio waves generated by interactions with its parent star

There’s nothing like crash-landing on an alien planet. Journey to the Savage Planet doesn't always get it right, but it has echoes of classic Metroid Prime, says Jacob Aron

Stars like our sun formed in a dense cluster with thousands of others, during which time they may have swapped planets

When the Soviet Union lands on the moon first people in the US are shocked. But For All Mankind provides an even bigger surprise when one cosmonaut's identity is revealed, says Emily Wilson

NASA’s InSight lander has been on the surface of Mars for over a year now – here are five of its strangest and most fascinating discoveries from the Red Planet

The enormous black hole at the centre of the Milky Way was active millions of years ago, and its intense X-rays may have formed some molecules necessary for life

China’s Yutu-2 rover has used radar to peer 40 metres under the surface of the far side of the moon and revealed how past impacts have shaped its geology

Earth’s atmosphere thankfully provides air for us to breathe, but when trying to study interesting objects in space it causes all sorts of problems, writes Chanda Prescod-Weinstein

A private satellite that is low on fuel could survive five more years because another satellite has come to its rescue – a technique that could be used by future service spacecraft

A huge black hole in a distant galaxy caused the largest explosion we have ever seen, with the energy of 10 billion suns – and it isn't clear why it was so big

A team of researchers say they have discovered a protein molecule inside a meteorite, the first extraterrestrial example ever found, but others are sceptical

Out of 28,000 suggestions, NASA selected the name Perseverance for its Mars 2020 rover, which will search for signs of life on the Red Planet

In the early universe, particles called neutrinos had a starring role in determining where galaxy clusters formed and which elements were created when stars exploded

A huge black hole from when the universe was less than a billion years old is shooting a powerful jet at Earth, and studying it could help us understand the young cosmos

The Rosetta spacecraft’s measurements of comet 67P have revealed a hidden source of nitrogen that may help us learn how giant planets – and even life – formed

When Mars was young, parts of the planet may have been able to sustain RNA, a molecule that probably played a key role in the beginnings of life on Earth

Venus’s surface is covered in strange wiggling lines that may form when colossal stacks of lava are carved by gentle winds over hundreds of millions of years

The Hayabusa-2 spacecraft bombed the asteroid Ryugu in April. Analysing the crater it left behind suggests Ryugu is a relative youngster at 9 million years old

The first-ever interstellar comet is showing signs of brightening, suggesting it may have been heated up as it passed near to the sun

Our measurements of the Hubble constant can't seem to come up with a consistent answer. What we learn next may alter our view of the cosmos, writes Chanda Prescod-Weinstein

Pluto’s ancient oceans may have come about just after the icy world was born, melting from ice in a process that suggests the dwarf planet took just 30,000 years to form

When Earth and Venus formed, they both had global magma oceans deep underground. Earth’s has turned solid by now, but Venus’s may still remain hidden

Some black holes are way bigger than we can explain, and they may have come from supermassive stars that formed by devouring the other stars around them

Cecilia Payne-Gaposchkin, who discovered that hydrogen dominates our universe, finally gets the recognition she deserves in a rich biography, What Stars Are Made Of

An unusually round and symmetrical deposit on Mars may be the result of an impact that popped the surface of the planet, causing a volcanic eruption less than 200,000 years ago

Strange particles observed by an experiment in Antarctica could be evidence of an alternative reality where everything is upside down

Brown dwarfs, which are halfway between huge planets and small stars, have extremely powerful winds whipping around them at speeds of about 650 metres per second

An explosion 4.6 billion light years away has released 10 times more energy than the sun will put out in its lifetime, making it the most extreme supernova ever found

Spending at least six months in microgravity can cause astronauts’ brain volumes to increase, causing pressure to build up in their heads and creating vision problems

A star that swoops close to the Milky Way’s supermassive black hole has a strange, looping orbit that proves Einstein was right about the gravity of black holes

Arrokoth, a strange two-lobed space rock, was hit by another rock at some point – the collision may have snapped Arrokoth’s narrow neck before it reformed again

The interstellar comet Borisov, which flew past Earth in December, is full of carbon monoxide ice that implies its home star is smaller and colder than our sun