Exploring Mars is a far different venture from Apollo expeditions to the moon; it necessitates leaving our home planet on lengthy missions with a constrained return capability.
How we are using up our home, how we are living and polluting the planet is frightening. It was evident when I was a child. It's more evident now.
What we are doing to the future of our children, and the other species on the planet, is a clear moral issue.
The eco-movement is growing as people all over catch on to the need to protect our precious planet, which makes the future look really bright - and makes me really happy.
We have people being a little uncomfortable in their life on Earth with finances and so on, so Science Fantasy or Science Fiction allows people to think that there are possibilities beyond the gravity of our planet.
Basically, the intersection between the animal world and the plant world is where life regenerates itself over and over, billions of times each day. It's the foundation of life on our planet.
We all come from our own little planets. That's why we're all different. That's what makes life interesting.
Life on our planet has been a constant series of cataclysmic events, and we are more suitable for extinction than a trilobite or a reptile. So we will vanish. There's no doubt in my heart.
The real problems of our planet are not economic or technical, they are philosophical. The philosophy of unbridled materialism is being challenged by events.
We do not have to visit a madhouse to find disordered minds; our planet is the mental institution of the universe.
Basic science provides long-term benefits for ourselves and our fragile planet and should be supported by all the world's societies.
I am aware of the sufferings of women in India, which is also the suffering of women in many, many countries on our planet. My heart is filled with empathy and love for them.
The Pacific, greatest of oceans, has an area exceeding that of all dry land on the planet. Herman Melville called it "the tide-beating heart of earth." Covering more than a third of the planet's surface--as much as the Atlantic, Indian, and Arctic oc...
A man that is of ’ Opinion, that this Earth of ours is a Planet, carry’d round and enlightn’d by the Sun, like the rest of them, cannot but sometimes have a fancy … that the rest of the Planets have their Dress and Furniture, nay and the...
Astronomy defined our home as a small planet tucked away in one corner of an average galaxy among million; biology took away our status as paragons created in the image of God; geology gave us the immensity of time and taught us how little of it our ...
We seem to be unable to resist overstating every aspect of ourselves: how long we are on the planet for, how much it matters what we achieve, how rare and unfair are our professional failures, how rife with misunderstandings are our relationships, ho...
Light is the only connection we have with the Universe beyond our solar system, and the only connection our ancestors had with anything beyond Earth. Follow the light and we can journey from the confines of our planet to other worlds that orbit the S...
We are not on this planet to ask forgiveness of our deities
Both individual fulfillment and the ecological balance of life on this planet are best served by dying when our inherent biology decrees that we do.
We are in danger of destroying ourselves by our greed and stupidity. We cannot remain looking inwards at ourselves on a small and increasingly polluted and overcrowded planet.
Earth Day should encourage us to reflect on what we are doing to make our planet a more sustainable and livable place.
