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Space News from SpaceDaily.Com brings the space industry professional daily news from the frontier, with contract, bid, launch and on-orbit satellite news as it happens.
- 2,281articles · 90d
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- Jun 15, 2026earliest in window
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Tanzania’s Ol Doinyo Lengai is the only active volcano known to erupt natrocarbonatite, the coolest lava on Earth: it flows at roughly 500–590°C, against 1,100°C or more for Hawaiian basalt. Fresh flows look black or dark brown in daylight, then react with rain and atmospheric moisture until the mountainside turns chalk-white—as though someone spilled milk over the lava.
2+ day, 4+ hour ago (791+ words) Ol Doinyo Lengai’s 500–590°C carbonate lava flows black, then atmospheric moisture and rain transform its unstable minerals into pale, rapidly weathering surfaces....
Mercury is shrinking — as its iron core slowly cools, the whole planet has contracted by up to seven kilometres, wrinkling its surface into cliffs hundreds of miles long
1+ mon, 3+ week ago (349+ words) Mercury carries the record of planetary cooling across its surface. Long, curving cliffs cut through craters and plains because the small planet lost internal...
The Earth's inner core grows by roughly a millimetre a year as molten iron freezes onto it, and that slow crystallisation releases the energy that stirs the outer core and keeps the planet's magnetic field alive
1+ mon, 4+ week ago (205+ words) Earth's inner core grows by about a millimetre a year as molten iron freezes onto its surface, and the latent heat and buoyant fluids released by that slow crystallisation drive the convection in the outer core that generates the planet's…...
Earth’s inner core is an iron-rich ball as hot as the surface of the Sun, kept solid only because the crushing pressure of the entire planet raises the temperature at which iron can melt
1+ mon, 4+ week ago (686+ words) Earth's centre sounds like a contradiction. The inner core is hot enough to sit in the same temperature range as the visible surface of the Sun, yet it is not...
Earth’s inner core is not rock but a sphere of solid iron-rich metal, smaller than the Moon yet probably more massive. As the planet gradually loses heat, liquid metal freezes onto its surface, expanding it by roughly a millimetre each year.
2+ mon, 10+ hour ago (705+ words) The centre of Earth is easy to imagine wrongly. It is not a cavern, not a furnace of molten rock, and not a smaller version of the mantle pressed into a ball....
Earth's magnetic field has flipped hundreds of times, the last reversal was around 780,000 years ago, and the field has been weakening for the past two centuries
2+ mon, 2+ day ago (600+ words) Earth's magnetic field is not fixed. Over the planet's history it has reversed polarity hundreds of times, swapping magnetic north and south. Published July 10, 2026 Earth’s magnetic field is not fixed. Over the planet’s history it has reversed polarity hundreds of…...
We have mapped the surface of Mars, the Moon and Venus in sharper detail than the floor of our own ocean, most of which no human instrument has ever seen up close
2+ mon, 4+ day ago (569+ words) Published July 8, 2026 Here is a claim that sounds like an exaggeration and is not: the best global maps of Mars, the Moon and Venus resolve finer detail than the best global map of the floor of our own ocean. The…...