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Tonya Greene

To love oneself is the beginning of a lifelong romance

25/09/2023

The telescope has other objectives, too, one of which is to show us the detail of how stars are created and how they spawn planets. And it's for this reason that Rho Ophiuchi is a fascinating target for the most powerful observatory in space.

"There's so much going on in this spectacular picture, as young stars splash vibrant colours across the clouds of gas and dust from which they're being born," commented Prof Mark McCaughrean, Esa's senior advisor for science & exploration.

11/09/2023

And to celebrate, the US space agency Nasa has just released a spectacular image of one of the most photographed parts of the sky.

It's the Rho Ophiuchi cloud complex, which is the nearest star-forming region in space to us, being just 400 light-years away.

Both professional and amateur stargazers like to look at Rho Ophiuchi, which can be found just to one side of the plane of the Milky Way.

30/08/2023

The Voyager 2 probe, which left Earth in 1977, has become the second human-made object to leave our Solar System.

It was launched 16 days before its twin craft, Voyager 1, but that probe's faster trajectory meant that it was in "the space between the stars" six years before Voyager 2.

The news was revealed at the American Geophysical Union (AGU) meeting in Washington.

15/08/2023

Esa flight controllers spent the past week building up to what they called an "assisted re-entry" instead. They commanded the satellite to progressively lower its altitude in a series of manoeuvres, the last of which on Friday dropped it to a height of roughly 120km.

From there, drag from the atmosphere was predicted to pull the satellite down to destruction within about two and a half revolutions of the planet.

Sensors available to US Space Command confirmed the final moments of Ae**us occurred over the Antarctic continent at around 19:00 GMT.

09/08/2023

Nasa has laid out a roadmap to achieve a more sustained human presence on Earth's natural satellite the next time around.

The agency's Artemis programme envisions stays of weeks on the lunar surface rather than just days, as was the case in the 1960s and 70s.

SpaceX has been asked to put down two astronauts at the Moon's south pole in late 2025 or 2026, and then again in 2028. These are the Artemis III and Artemis IV missions.

28/07/2023

They've also detected two or three other similar protostars in the immediate vicinity that are likely contributing to the outflow's contortions.

Once you realise what's going on in the image around VLA1623, you can then pick out similar flows elsewhere in the Webb vista. There are a great many, which just illustrates how productive this region of space is.

JWST is a joint project of Nasa and the European (Esa) and Canadian (CSA) space agencies.

18/07/2023

The UK is in a unique moment. Having pioneered the development of small satellites, through companies such as Surrey Satellite Technology Limited and AAC Clyde Space, it has put itself right at the crest of a new wave. The use of off-the-shelf, low-cost, miniaturised consumer electronics is revolutionising satellites. It is now possible to put enormous capability inside a very small box. Having spaceports would allow UK industry to offer the full "turn key" product to their customers - from design, to build, to launch. The whole package.

07/07/2023

Dr David Parker, the director of human spaceflight and robotics at the European Space Agency, agreed: "The Americans called their Mars rovers Spirit, Opportunity and Curiosity. We've tended in the past to name our missions after famous scientists.

"But, yes, perhaps this time we go with a name connected with the search for life - biology, genetics, DNA, whatever. Who knows? We just want a great name."

29/06/2023

RemoveDebris will go through a few weeks of commissioning tests before beginning its experiments.

There is some 7,500 tonnes of old space hardware circling above the Earth.

This junk includes old rocket segments; bits that have fallen off satellites; flecks of paint - even tools dropped by spacewalking astronauts.

15/06/2023

The search for exoplanets, which orbit distant stars, has opened up a whole galaxy of worlds beyond our own. Over 3,700 have been discovered to date, but they may have companions.

Since the first confirmed discovery of planets beyond our own Solar System over 20 years ago, we have known that our stellar neighbourhood is not unique in the Universe.

02/06/2023

"How and why they developed the way they did is still an open question, but I think these impact events have probably provided more understanding on this topic than anything else we've done so far on the mission."

There are many craters on Mars, the consequence of billions of years of bombardment from rocks drifting through space. Some are true giants. The Hellas Basin is an impact structure over 2,000km in diameter.

24/05/2023

"In theory it could supply all of the world's energy in 2050," he says.

"There's sufficient room in orbit for the solar power satellites, and the Sun's supply of energy is vast. A narrow strip around geostationary Earth orbit receives more than 100 times the amount of energy per year than all of humanity is forecast to use in 2050," Mr Soltau says.

Earlier this year, the UK government announced £3m in funding for space-based solar power (SBSP) projects, following an engineering study conducted by consultancy Frazer-Nash that concluded the technology was viable.

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